Retumbo powder temperature sensitivity. change for these powders.
Retumbo powder temperature sensitivity. 26" X-Caliber prefit, 1:8 twist, fluted heavy sporter.
Retumbo powder temperature sensitivity All things being equal I'll pick a powder less sensitive to temp swings if given the choice. Live in California and temperature here varies from 40 degrees in winter to over 100 in the summer I'm new to reloading for the 300 WM. Jan 16, 2018 · Just ran a fairly rigorous temperature sensitivity test on IMR 8133 and Reloder 26 in my 7mm RM. Jan 20, 2013 · Temperature information comes from ADI not Hodgdon . It seems that most people have found wide swings in velocity with temperature changes. Although the accuracy was there with both powders. This is not to my liking but most people claim that accuracy is outstanding! In fact, it seems that RL33 outperforms Retumbo or H1000 in the Sep 22, 2013 · The pattern I've noted with all powders, is that the numbers get the tighest with high load densities and a hotter ignition. 416 Remington Magnum. It was my powder of choice when I started developing load for my 300 Win mag until I encountered erratic performance. Conclusion Attributes. I have used H1000 and it opens up the groups very slightly. The slow burning characteristics and short-cut grains of the new Vihtavuori N568 high energy gun powder provide extremely consistent All other N500-series powders are safe to use in any temperature also below 0 °C / 32 F. I have tried R-25, R-22, Ramshot Magnum, MagPro, Win 780, VV N-560 and N-570. I need to do some chronoing at cold temps and see what the numbers are. 03 gr ES for charge weights) LabRadar Indoor/Outdoor thermometer set May 24, 2017 · Rhovee - I found your comment interesting; RL-26 versus H1000. IMR 4350 is my powder of choice for my 243 Winchester, 6MM Remington and 338 Win Mag, 4895 for my 3030, 3031 for my 35 Remington TC, 4831 for my 280 Remington and IMR 7828 for my 300 Win Mag. I am bummed each 3 shot group had one flier and one with an odd velocity. H4227 H4895 H4198 VARGET H4350 H50BMG H4831 H4831SC H1000 RETUMBO H322 Benchmark So they all have the same technology as Varget . originally planned on going with h1000 but can not find h1000 powder anywhere and no one has any on its way. I did not get to shoot any of the Retumbo, H1000, or N565 loads because I had a case head separation on the last N560 round that measured 2945 fps with 86. I use standard primers with H4831 too. I would like to know how much temperature affects fps in a hunting rifle 0 to 80 dregrees? Are the ones saying this shooting 500yds+? what would be the best temperature insensitive powder that meters good for a 30-30. I have 3 really good loads, I wanted to ask the question to you guys to see what your thoughts are on my situation. Just want to get a feel for how sensitive this powder is to changes in temperature and to what effect. 30-378 Wby? Not temp sensitive. all powders are somewhat temp sensative, but the ball powders are worse. Apr 16, 2012 · I've got Retumbo as well, and was staying away from the RL-25, etc for temperature stability reasons. Aug 26, 2016 · Whether or not any powder is "extreme", temp sensitivity is primary about the cartridge it's being used in. Awsome! Temp stability is very very very important to me. All most all my loads so far are right under 1 inch. ) in a 338 WinMag/185 XLC load that had been worked up in 90 deg,one cold December at 10 degrees. While I have some H1000, I can't seem to locate any more. Nov 6, 2018 · Hodgdon 4831 is very temperature stable, and IMR4198 is pretty good also, that's why you can use them year round with zero problem. Dec 4, 2008 · After a few months of shooting the course he switched back to his retumbo Load at around 3000fps. 36 FPS 9. All of the above listed, have safe charges up to 2800 and beyond. 0 FPS 12. 5-06, it may be a little slow, but I've generally had good luck with slow powders. If you were using temperature sensitive powders you would see a difference in climates that swing over 110 degrees. 23 FPS per degree. was 83-Degrees, Loaded 98. Jan 30, 2016 · I was just hoping to get a little more velocity with 8133 and it had the hope of not being temp sensitive and possibly help prevent copper fowling as it is one of the new Enduron powders. 5 FPS 12. Hope this helps. Nosler brass, Berger 180 hybrids, Fed 215m. I just wondering if there is a better powder available out there? I know there was a thread on here talking about RL 23 and Jun 28, 2011 · MagPro is a run of double base ball powder manufactured at the former Olin St Marks plant in Florida. Dec 23, 2008 · I have been playing with Retumbo powder (AR2225) in both a . I loaded up 3 each from 90-93 gr, 300 gr mk, with federal and win. How about (Western Powder's) RamShot's Magnum powder for ELR (>1200 yrds) use with the . 5-06 is pretty close in case capacity etc to the 6. I have watched Varget, IMR-7828, RL-25, RL-22, Retumbo, H1000, H-380, IMR-4350 IMR-4831 plus other so called temp stable powders all at one time or another started chronographing in the morning on through the mid day heat and you can watch the velocities go up as the heat increases. Standard 6. Since my last post I purchased Retumbo and tried it at the Range on 6/6/09. Range was 100-yds. com Jun 14, 2011 · Approximately 28fps increase in MV as temperatures dropped from 68F to 41F with H1000. 5 FPS Good IMR 7977 0. 0 FPS Excellent IMR 7828 1. Tips from our Pros Try Vihtavuori N570 with . N-570 is so coarse it is hard to even weigh to the 100th of a grain. 338 Lapua. 1 Grains of Retumbo using 180-Accubonds for my 300 Ultra Mag. I am very pleased with the accuracy. As for temp sensitivity, we know that ball powders are typically more sensitive to temp than extruded powders. I have been experimenting with the same round for about 2 years and have worked up a load and controlled as many variables as possible. Rounds Mar 28, 2017 · While there are some notorious exceptions to the rule, powders aren't just universally temp sensitive or insensitive; it's cartridge specific. I have an 8 lb jug of Retumbo and wondering if anyone out there has experimented with this combination. I've got several load ladders all loaded up, and it looks like I can get to the range on Saturday for a bit. Both are stick powders (extruded). The question is to what extent? I doubt straight answers to that question will be had from anything but testing by the LRH community. Hodgdon H870 150. The source suggested that I stick May 3, 2001 · Retumbo is the powder in the 6. They are very different powders and both have their uses depending on what you are trying to accomplish. As the temperature gets higher the velocity spread also goes up. Vihta Vuori N170 151. Would love to hear any and all experiences. MV. Ball powders are typically more temperature sensitive than stick powders, which makes StaBALL especially appealing. I have tried US-869 powder also and could only get 2,900 fps with the 200 AB. 0 FPS 27. Not as much of an increase as with the 162 grain Amax. Sounds like I could flip a coin for either of my preferred powders and do well. Jan 26, 2006 · 7828 is actually a bit slower than R-22. I assume that is for velocity and temperature stability. N560 and N570 are not advertised as being temp. May 10, 2022; Oct 28, 2007 · The Federal 215's seem to be more temp sensitive than the Winchester primers. Feb 13, 2007 · RL-22 is my favorite powder. Nov 2, 2009 · Hodgdon Retumbo 149. btw Never found Aug 4, 2005 · if you read the label, and it says it contains nitroglycerine, reguardless of how it looks its ball (double based) powder, the nitroglycerine makes it more temp sensative than a powder that only contains nitrocellulose. It is the reason that Hodgdon developed the "Extreme" line of powder at the Australian Defense Industries facility in Australia (French ownership). change for these powders. threads/ramshot-lrt-and-magnum-temp-stable. I've been on elk and deer hunts at 60 degrees as well as 15 degrees, and don't want to have issues with the powder if possible. threads/h1000-retumbo-or-magpro-best-for Jun 22, 2009 · I have results from the weekend testing that I did to determine temperature effects on cartridges. My thought is to focus on what powders are made in the United States, as substitutes if it gets really worse. 5 FPS Poor Gun Powder Temp Sensitivity Chart Powder MV +/- per 1* F MV change per 25* MV change per 50* MV change per 75* Dec 31, 2019 · The retumbo was exactly the same. That said,I just note what the temperature is when I do load testing,and adjust the loads when needed for different temperatures. 5, StaBALL Match, and StaBALL HD. I've tried h1000, Rl23, RL26, h4831sc and they all have shot good. See full list on ultimatereloader. The bigger and fuller the case - the more pronounced any weakness with a powder becomes. Which of the above is the least temp sensitive? Which meters the best? Never used any of these powders before. I use RL-22 in 270, 280, 7mag, 7 STW, 300 win, 300 Wthby, 300 Jarrett, 338 Win, 338 RUM. I am running a Apr 30, 2022 · Just looking at what you guys have seen with these powders and them being temp stable or not. There is certainly some loss of velocity Jan 21, 2014 · Hi, I have read everything I can find on Rl33 for my 338LAI. But the reality was that higher velocity meant higher pressure and I got the same pressure signs at the same velocity whether it be with Retumbo or 8133 I Apr 9, 2020 · I Put Some Rounds in The Freezer For 24 Hours, Tested Against Normal Temp. Temp. That rules out all Hodgdon powders, all Alliant Powders, All Vihtavuori powders Jan 9, 2007 · I burned more IMR powder than any other brand. The famous Poudre B, developed in the early 1880s by French chemist Paul Vielle, is considered the first successful smokeless rifle powder. In your case with the 308 and 175s, if you are running 42 or so grns of AR comp and 43. Just thought I would let everyone know who responded to my original post about reloader 25 powder. This will be my 9th season with this rifle and probably about 1000 rounds and N570 seems to have been giving me my best consistency and velocity to date. The "1" in Vihtavouri powders indicates single based, those starting with a "5" are double based. Apr 15, 2020 · It was a good powder years ago; it has been made better by the modern coatings to reduce temperature sensitivity. Apr 21, 2023 · StaBALL ball powders are designed to be temperature insensitive with progressive-friendly metering. But with the 338 bore, no worries about powder bridging. Narrowed it down to Retumbo and us 869. Oct 29, 2024 · This magnum, extruded powder was designed expressly for the really large overbored cartridges such as the 7mm Remington Ultra Magnum, 300 Remington Ultra Magnum, 30-378 Weatherby Magnum, etc. What I have seen is that "all" powders are heat sensitive at high temperatures (90 to 100+) some more than others. Faster, slower, magnitude? Also any info on H1000 would be great as well Feb 6, 2013 · Mostly retumbo and H1000, supposedly not temp sensitive powders per hodgdon. Trying to decide on a powder for 300 gr projos for the . There are many threads right here on LRH and around the internet documenting really crazy deviations above 90 degrees with Jan 6, 2023 · If it were my rifle I'd be looking at N565, N560, H1000, Retumbo, Reloader 26, H4831sc, Reloader 23 (very good powder in my 7mag) for Temp Stable powers and maybe IMR4350 even though it's not temp stable as I've used it in my 7 mag and 150ABLR with great accuracy at 61gn mv 3025 and less than 1/4 moa. Jun 23, 2015 · My best load out of my AI is 140 berger Elite hunters, 61gr Retumbo. Mar 10, 2021 · Ok, from time to time, we have discussed substitutes for Retumbo, and substitutes for Varget, etc. Not sure how retumbo would run out of the standard 6. Any preferences between the two? Why? Any recipies to share? Thanks! Feb 5, 2018 · Temp sensitivity, and larger ES/SD in MV fall within my characterization of finicky. So in my shooter app, If I check the powder temp box and it's 25* out then is reduces my velocity quite a bit. There is plenty of 7828 and 7828SSC available. Hodgdon RETUMBO Powder was created specifically for very large overbored cartridges like as the 7mm Remington Ultra Magnum, 300 Remington Ultra Magnum, 30-378 Weatherby Magnum, and others. I love that round, it's a screamer. Been to busy to do any kind of shooting lately though. 0 FPS 8. Feb 1, 2012 · I no longer have a 25-06 but I had good luck with 4831 sc and RL17. 5 Creedmoor ladder with H4350 and 140gr Apr 19, 2013 · Even with temp sensitive powder, you will have some big changes in POI with 20 degree change in temp. But I put some rounds in the freezer and a 56* drop in temperature from 96* to 40* showed a 133fps drop in velocity, so it is temp sensitive. (Anything below 60o is considered a cold front here is Texas). com states LRT has a burn rate similar to Retumbo. May 9, 2022 · Google search of reviews range from great works well, temp sensitivity issues, too slow of a powder for the caliber. Any input would be appreciated! OVERVIEW: HODGDON RETUMBO RIFLE GUN POWDER. Apr 13, 2019 · Just ran a fairly rigorous temperature sensitivity test on IMR 8133 and Reloder 26 in my 7mm RM. 5 grains. I use it for 120 B, tips 130 Accubonds and Berger VLDs and 140 Bergers. Also the groups tightened up 15-20% with the hot rds. 5 FPS 53. btw Never found Jan 18, 2014 · Now Jeff is saying he's noticing temp sensitivity with VV N570, which I had thought had proved to be very temp insensitive. 0 FPS 18. Or IMR powder ? I will have to try Retumbo thanks Greyfox Dec 15, 2022 · If it can get anywhere near the speed of CFE and BLC-2 while being less temp sensitive, that’d make a helluva ball powder. 5 grains of RL 22 and getting 1/2" groups consistently. Suitable for a variety of cartridge including popular choices like . I do like low temp sensitivity but I don't get to worked up about it due to the fact that I hunt in weather usually no colder than 10 degrees & no hotter than 60 degrees, rarely as low as 10 or as high as 60. Temperature Sensitivity Coefficient is the slope of this line. I have a Lazzeroni Warbird that I have messed around with for a few years. Reloader 26 is most definitely not temp stable either. I am not sure how temperature sensitive RL 22 is. Went with the temp stable Retumbo and H 1000 which were consistent in the weather here, whether practicing in the valley or at 6500' in the mountains. By now I'm sure that someone has done testing with RL33 powder to quantify it's temperature sensitivity or lack of. Features custom input or general table with commonly used long-range powders. For example, RL22 may not exhibit much temp sensitivity when comparing between 32 degress and 60 degrees. May 10, 2007 · RETUMBO This magnum powder was designed expressly for the really large overbored cartridges such as the 7mm Remington Ultra Magnum, 300 Remington Ultra Magnum, 30-378 Weatherby Magnum, etc. Wether any figure is correct or not these powders are proven to have less temp sensitivity than others on the market . 2700 fps. If you work a load up when it is cooler outside,you may have high pressure problems when it is warm. I was sure most would back Retumbo with 200g pills. Ray Temperature Sensitivity Factor: Accounts for changes in muzzle velocity with changes in temperature. I never tried Retumbo that I recall. stable. Nov 5, 2010 · I hear people saying IMR 3130 and bl-c2 are temperature sensitive powders. Posted: 12/23/2022 1:31:31 PM EST [#18] Jan 4, 2022 · N560 is a double based powder and typically those tend to be more temperature sensitive, all else equal, than single based powder such as N165 or H1000. Okay guys, I have a good dilemma on my hands. Retumbo 0. Retumbo adds 40-100 fps more velocity to these cartridges when compared to other normal magnum powders. All things being equal double base powders are capable of higher energies at equal pressure and single base powders are more likely to give the tightest extreme spread numbers. 338LM Retumbo is practically flat from 0 to 100 F, within the expected SD for the load, 10fps. 338 Lapua Magnum, and . 0 FPS 37. Retumbo gave good velocity but peaked very fast working up loads, good accuracy too. 338 Edge and a . Only N-570 with the 140 and even 160 gr bullets will outperform Retumbo. It produces good velocities with bullets from 124-147gr with anywhere from a 60gr. Luckily, I have plenty of both, so when I get dies and brass, I will test all 3. 375 H&H Magnum, 7mm Remington Ultra Magnum and many others. Thanks, BGG Jun 16, 2021 · I varied the temperature by 30 degrees from 70 to 100 leaving all other inputs constant for each powder. Feb 14, 2006 · You will find that generally double base powders are more temp sensitive than single base powders. 300 Winchester Magnum, . There is no such thing as a universally stable powder. 0 FPS Excellent IMR 4955 0. Some powders will certainly give you increased pressure with higher temperatures, so it is a good idea to work up a load at, or near, the temperatures you plan to shoot the load. May 31, 2018 · The product description for LRT on midwayusa. 80F. I also believe that temp sensitivity can vary depending on the temp range itself. Hodgdon Varget was the second least temperature sensitive powder in this test, with 46 fps of variance in muzzle velocity between temperatures of 25° F and 140° F. . I have varied Oct 20, 2007 · Hi guys. I still use Reloader 19 for my 243 which is an excellent powder for that caliber but gave up on the 22 long time ago. N565 was the least sensitive only varying 1. The results of my testing seem to lean towards some small amount of temperature sensitivity with this powder. In the picture at right above, you see from left to right: Ramshot Magnum, Hodgdon Varget, Hodgdon Retumbo, and IMR 8133. charge with the heavier bullet. Mar 23, 2013 · I have been reloading my 7mms rem mag with 162 ELD-X pushed by 60. 23 to 1. May 12, 2005 · Reloader 19 has no temp sensitivity issue but Reloader 22 does; At least in my experienced. 0 FPS 79. MagPro is amongst the most temperature sensitive powders available. 5 WSM. As compared to other standard magnum powders, RETUMBO delivers 40-100 fps additional velocity to these cartridges. primers. We call that not statistically different. Jul 23, 2011 · I think I read on here recently in the reloading section, that single based powders like H1000, Retumbo, H4350, etc are temp stable, where as ball powders or double based powders are more sensitive, ie reloder 22, etc. I did not have Chrony at the time. At a certain temperature I am getting awesome accuracy but speeds change to much from there. Plenty of load data between my 3 apps to safely work up. 62mm Special Ball, Long Range, MK 316 MOD 0 is loaded with IMR-4064 because the RL15 powder used previously was sensitive to the temperature extremes in Iraq and Afghanistan. Dec 16, 2021 · I've been shooting N560 with a 210M in my 6. RL26 will be the do it all powder for all weight ranges. In addition, it is an Extreme Powder, I have heard (is it only a rumor?) that Retumbo (Hogden) is a very temperature INsensitive powder and that regardless of the temperature of the powder in the case (cold, warm or hot) the burning rate of the powder is affected very little. I don't believe it has any more temp sensitivity than any other powder including the Hodgdon extreme series or IMR powders. 4831 is just a tad faster than R-22. StaBALL HD has a burn rate in the 6. 03 gr ES for charge weights) LabRadar Indoor/Outdoor thermometer set Dec 26, 2010 · I switched from R22 in my 25-06 to Retumbo due to temperature sensitivity. I have seen that the velocity is about 1% higher with cold Retumbo powder VS a warm Retumbo powder load. How does this compare with other powders of similar burn This is my first post I have been using R25 loads for my new 7mmRM. I am running under max load according to hornady by 2. I believe alot of the IMR powders are single based as well, 4064, 4350, etc. I know the powders by Hodgdon, such as H-1000, 4831, 4350, are not sensitive. charge for the lighter bullet, to a 55gr. Temperature. Jun 29, 2020 · 7828ssc is a single base powder (nitrocellulose). 338 Lapua Magnum and heavier bullets weighing 19,4 g /300 gr Jul 12, 2014 · I currently use the standard Large Rifle Primers from CCI. 16 FPS 4. If you shoot a smaller caliber, large capacity cartridge, you might have to use a ball powder to prevent powder bridging and pressure spikes. Jun 20, 2016 · That is very, very low. 308 Winchester as it is to the big . Nov 8, 2006 · Hodgdon lists as extreme powders: H1000, H50BMG, H4198, H322, H4350, H4895, H4831, H4831SC, Varget, Benchmark, and Retumbo. 5grns or so of Varget, both with CCI BR2s your temp spread as well as possibly your extreme spread will likely tighten up with 43+ grns of AR Comp and 45+ grns of Varget with Fed210Ms Dec 20, 2009 · I believe that temp sensitivity is affected by several variables. It got great velocity matching rl26 & n570. I give up. Dec 15, 2012 · Varget and H4350 are two of the most temp insensitive powders on the market, the formula that is in those charts is FPS gained or lost per *F gained or lost. I have a long barreled 300 RUM being built and am planning on Thanks Chris338378 appreciate your input. 300 PRC with the 225 Grain ELD-M. of using a Temperature Sensitivity Factor May 9, 2015 · IMR and Alliant powders can get pretty sensitive,Hodgdon Extreme powders are all pretty temperature stable. Usually, in the summer, is about a 1/2" group at 100. Cheers. Thanks in Oct 23, 2010 · I can't tell you much about the velocity question but in my . Cheaper than Rl-33. Feb 19, 2009 · 918, the US869 was most accurate for a friend's 300 RUM and my 30/378 Wby but living here in Az the temp sensitivity reared its ugly head with it. RETUMBO adds 40-100 fps more velocity to these cartridges when compared to other normal magnum powders. I have a 6. Which is why I'd seriously consider another powder. I have read that the military uses H1000 in their loads. IMR 8133 is an Enduron powder, making it less temperature sensitive. I would also like to know if you have found it difficult to get very low ES numbers of say 10 or under. Clearly Hodgdon needs to come out with a extreme powder in burn speed between Retumbo and H50BMG Sep 30, 2018 · Looking for a more temperature stable powder to replace my current load consisting of Reloder22. 06 FPS 26. I would say that neither powder is "better". Jul 13, 2012 · This magnum powder was designed expressly for the really large overbored cartridges such as the 7mm Remington Ultra Magnum, 300 Remington Ultra Magnum, 30-378 Weatherby Magnum, etc. RL26 being the fastest by at least 100-200 fps with them all loaded to max. What I saw was a variance of about 1. Equipment. Closer to R-22's burn rate you have Hogdon's H-4831 which is one of their "extreme" powders that are supposed to be unaffected by temperature. the slower burning they are the worse the effect is Mar 19, 2022 · I believe that the only two powders that Vihtavuori advertises as being temperature sensitive are N565 and N568. With the . I do think it may be just a touch more temp sensitive, I could be wrong. Jan 17, 2023 · Retumbo Ramshot Magnum N570 Looking at reaching 2800 FPS in my 26" . Retumbo powder for sale is available in stock in 1 lb and 8 lb containers. Nov 16, 2011 · Has anyone noticed that retumbo is sensitive to cold vs warm weather? I got my pet load out for my rifle which is a 30-378 which I shoot 210 vlds over 103gr of retumbo. Does anyone have a good reason to avoid magpro? Retumbo was slightly slower and very close in temp sensitivity. Example, the 7. Sep 15, 2018 · In a 29" 338 Allen Xpress, RL33 was temp sensitive (others seem to be doing better with bullets very close to lands, as I recall) and not as fast as N570. Apr 17, 2023 · As a double-base spherical powder, StaBALL HD meters consistently from progressive auto-throw powder measures with the temperature insensitivity magnum ball powders typically lack. 5 PRC and 300 PRC range, falling in the realm of Hodgdon’s Retumbo and H1000. 26" X-Caliber prefit, 1:8 twist, fluted heavy sporter. IMR Enduron - PrecisionRifleBlog. 375 Snipe Tac. Ramshot Magnum would be a good choice for a relatively temperature insensitive powder in that range. Jul 28, 2019 · I have a 30 Sherman Mag that I tested LRT in with the 215 bergers. Mar 10, 2021 · It appears they were probably the most temperature sensitive of the powders (at least in high temps) I had loaded that day. Aug 4, 2021 · Hmmmm, it has not gone the way I anticipated. A . Sartorius high precision scale for powder charges ( ≤ 0. Retumbo is one of the Extreme powders and not temp sensitive like Re 22 or Re 25. IMR 4166 performed very similar to Varget, and proved to be fairly insensitive to large swings in temperature. Jan 3, 2018 · The better powders will only see a change of about 1/2 fps difference per one degree of temperature change, so call it a max of 45 fps for the same 90 degree temperature change. 66 FPS in velocity for each degree of temp. A seemingly knowledgeable source told me to watch out for the temp sensitivity of R25. Jan 6, 2003 · It's going to be big. big advantage . Apr 17, 2022 · IMR 8133 grains had a larger length and diameter than Magnum, Varget, and Retumbo. I know RL22 or RL25 is used but being in florida i want something that is not so temperature sensitive so RL is out. There are currently three powders in the StaBALL line, StaBALL 6. Jul 5, 2012 · Confirm this if you can: IMR powders are temperature sensitive. I found IMR to be very stable and less temp sensitives. Vihta Vuori 24N41 Their data showed the most temperature sensitive powder in their test to be IMR Dec 25, 2015 · Retumbo does fairly better with the heavier 140+ bullets. Rl26 is double base nitrocellulose and nitroglycerin). Oct 16, 2020 · And just as good if not better velocity wise, than Retumbo. Perhaps someone will correct me on this though. Also, which powder is more temperature sensitive? From what I have found on LRH and other sites, Retumbo seems to give better velocities than H1000. How does this powder compare in terms of Cody's test Is just what I have found with the RL powders at Lower temperatures. But realistically it isn't usually that big of a deal. 9 gr N560. 7122043/" "SCRIPT_NAME Apr 5, 2020 · For me the re22 is too temperature sensitive and am seeing mixed results, I can shoot anywhere from -30c to +30c. 5 FPS 25. Look forward to hearing your suggestions. Feb 1, 2021 · Introducing the short-cut N568 high energy reloading powder We are proud to introduce a new heavy weight champion in our N500 rifle powder series: the N568. My node was at 50 gr 4831sc using Fed 210 primers and Hornady Brass. com Dec 12, 2018 #7 Jan 7, 2015 · I think a powder's temp sensitivity depends on the size of the case. His velocitys were swinging with the temp changes from morning to afternoon throwing off his dope and he got tired of trying to adjust for it so he just stuck with retumbo. I also switched from the 100 grain Sierra GK to the 117 GK. May 7, 2018 · Ok, so I don't get to go to the range very much, just once every few months, but I go every chance I get (young kids keep me busy). I've tried both and not noticed any difference. I'm looking for specific references OR experienes with IMR-4831 and IMR-4895 in temperatures under 32 degrees F. Hodgdon’s Varget is an extremely versatile powder, which is equally applicable to the . 5x284. In fact, temperature was a major problem with the first smokeless rifle propellants. It was very good for me. Apr 18, 2006 · I could'nt locate my load notes from back then using RS Magnum powder with the 200 AB and I can't recall the exact velocity, only remember it didn't match up with the RL-25 results. Hodgdon's own extreme data quietly points this out, in one case the "Extreme" choice was more stable across the temp range by 9fps. RL 17 was the better of the two but temperature sensitive so I went back to 4831sc. H1000 or Retumbo . For example, R19 gave me almost a 200fps drop ( was checking my zero for a late season cow elk hunt, was shooting "patterns" so ran them over a chrono. May 27, 2017 · Already used Retumbo with excellent results out to 2700 yds and just wanted to try a VV powder and N570 seemed to be equivalent to Retumbo according to VV but perhaps with slightly faster MV with a little lower pressure at the expense of possibly a slightly decreased barrel life. 280 RCBS Improved, H1000, and the 168 grain Berger VLD, I see about a 5fps increase in MV as temperature decreases from 66F to 44F. edge. Nov 3, 2008 · Has anyone got any data on the effect temperature has on Retumbo powder with regards to muzzle velocity? My chronograph is a bit unreliable so I am looking for some help. But along with being very temperature sensitive, Poudre B was extremely unstable, resulting in a few spontaneous explosions. 5 PRC's with great results. Can anyone state for sure just how temperature sensitive this powder is and give some sort of Feb 22, 2012 · Powders act differently in different situations, that is why there is so much discrepancy in burn rate charts! Hodgdon Retumbo is supposed to be less temperature sensitive and they designate it as an Extreme Power, LOL. I have put 100 rounds through my Gradous 7RM and still don't have a load that works. I have never found RE25 to be temp sensitive at the temps I shoot in, so it has never been a consideration to not use it. Dec 12, 2018 · Here's an article with some testing of powder temperature sensitivity (Varget is one of the powders): Powder Temp Stability: Hodgdon Extreme vs. Sep 3, 2009 · I would like to know what 338 Lapua owners prefer, H1000 or Retumbo for 300smk's? Everthing that I could find seems to favor H1000. dkusjmwnaqjvmtafxwnsvddavhkpngtmhkbxlywnzjsyapgmqo