N570 vs retumbo Joined Jan 10, 2015 Messages 127 Reaction score 11 My 6. My findings were that it was very comparable to N570 with temp stability I have plenty of N570 and Retumbo and I should be able to match the velocity or maybe even get a little more, but will I see any improvement in accuracy with these powders? One thing. I also think that the market is pushing new products instead of supplying the old standbys. 300 Win Mag fan boy Home. I know not much difference between 350 vs 400 but there is a felt recoil difference regardless. May revisit as barrel appears to be speeding up now with a little over a hundred rounds on it. 350 ! I'm just curious whether anyone can say if 570 might be a closer match to R33 for velocities than what Retumbo typically is, for example. I have shot incredible groups with this combo and the gen 1 300 grain bergers 30 thousands off, for what its worth. 5 - 2886fps ejector mark. 0 grains of n570 to check for velocity consistency. Let’s start with the 100 series. Those two powders have a lot more energy than N568. 6gr Vihtavuori N570: 3240FPS/17. Even their own load data shows it's not really N570 in speed, it's somewhere between N565 and N570, but temp stable like N565. I'll be using a 27" 9 twist barrel. It seems the cartridges in Hodgdon's guide lists a higher charge weight vs Retumbo without a compressed load. Using 210 and 215 Berger’s, Generally running 2890-2910 with 76gr H1000 and 2960-2980 with 79gr Retumbo, both max, <. Used 100g Retumbo most of the time, but now 103g of N570 about -. I tried 869, RL33, LRT, 20N29 and Retumbo but just couldn’t get velocity and accuracy I was looking for. I decided to mine the 300 PRC thread in the ELR subforum for handload data ahead of starting to work up a load for my rifle, working backwards from recent posts. 5 twist barrel. Switchback2 Well-Known Member. N570 177 hammers 82 grains Not really pertaining to the cartridges mentioned but when I put new barrel on my 300 RUM I started out with N570. TxLite WKR. There was a nice wide node between 83. See attached picture. 5". May try a different primer to see if I can tighten it up some more. TXAoudadKlr; May 11, 2016; Replies 0 Views 2K. 5 SAUM Hbn coated 156 EOL load is using 61. Joined N570 is a high energy powder and is said to be harder on barrels. Joined Feb 18, 2016 Messages 285. . Now the N565 is also a good choice. anybody in the everett/seattle area willing to trade a lb of n570 for a lb of retumbo? contact Allan at 425 422 0104. Which of the above is the least temp N570 tops out at 75. 5x284’s, but using proportionately{by about 20gr), lower charge weights. Trying to decide on a powder for 300 gr projos for the . 300 RUM loads especially if any of you are loading with N570. I've always liked h1000 and retumbo. Capt Now with my new reamer and barrel brux 26 inch 1;8 I ran h1000 max out at 3050, retumbo maxed out at 3100 but n570 maxed out at 3200. It appears to me more like n570 only you can put more in the case . I've been trying Retumbo in my . I bought a 300PRC which I can’t really load with my existing powder. Looking to buy . 2 83. Javascript is required. motrapper Well-Known Member. Am in the process of trying to get my hands on some 195's for my Firebird, and seriously considering N570 as a powder instead of Retumbo. N568 excels with heavy-for-caliber projectiles and provides Reason I bring this up is I really would prefer to run Retumbo (temp stability) vs the RE33. 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. Great speeds with 180s in 7 stw. 5 PRC finished up based off a Tikka 300 win mag with a 24inch 1-7. Better extreme temp protection than N570. Why 350g. 300WinMag with the 208gn A-Max and CCI 250's but best I can do so far is . Retumbo and N570. Neither of those meter for crap though. We used the N560 and RS80 for 338LM. 215s should do better than 3000 in your rifle w/ N565 or N570. I'm running H1000 in mine with the 212 eld-x and getting great groups. Joined Nov 2 . 5-284, that may serve as a starting point for figuring things out. N560 is not as temperature insensitive as N565 and N570. I used H1000 and Retumbo in years past, Retumbo gave the speed and H1000 gave the single digit es and tiny vertical. 0 and 84. I try and maintain 2950-3000fps with the 143eldx. It shoots fantastic in my 7 rem mag. Was awesome in other barrel. In After going back to the drawing board, retumbo produced a 1/4moa load at 2789fps that has been confirmed out to 1670 yards in drops using only 89 grains of retumbo, cci250 primers, and nosler brass. N565 was developed specifically for military sniping applications and 250 grain bullet weight loads for the . Thread starter Benchrest Braxton; Start date Jul 30, 2023; From my experience with using N570 in my (2) 338 Edges and my (2) 300 RUM's, in temps from +100*F to -30*F, there is ZERO chance that N570 is . 2800 will probably be all she does, especially in Hornady brass, adg might get 2850-2875 top end. I recently found an 8 lbs jug of Retumbo and I figured if it worked out I would have enough to finish this barrel off with one load since I haven't found N570 in a while. Bfish22 Lil-Rokslider. 345 ! Near Maximum ! Alliant Reloder-33 *C 97. Interested in your findings. cartridge that normally only works to it's best with powders like US 869, RL33 (bad on throats) H50BMG and 24n41. thanks to all! Reply. Worked up in 0. Is an ideal choice also for such 67. Here are my thoughts. D. VV N570, would be my first powder to look into for this, N560, N170, N165, Norma MRP and 217 is what Norma used, assume you cant get 217 anymore, Hodgdon Retumbo, H-1000. I’m going to be loading up some 350 grain MTAC’s for a . My 30 nosler is getting accuracy @ 3050 w/ H1000, 3125 w/ N570 or RL26. Thread starter Barehandlineman11; Start date Oct 8, 2019; Help Support Long Range Hunting Forum Become a supporting member. Replies 65 Views 20K. n570 powder. H4831sc was the most accurate and consistent, retumbo was a very close second. 100" off lands (don't have book in front of me). Narrowed it down to Retumbo and us 869. Is worth about 50-75 fps additional velocity over H1000 and Retumbo with the same components. Retumbo is cooler burning too. RifleShooter readers will be most interested in centerfire rifle propellants, which include the N120 to N170 line—a single-base gunpowder known for outstanding precision—and the N520 to N570 line, a double-based propellant engineered to produce maximum velocities. Ah. Retumbo is what we used in the 7 PRC for the Nightforce ELR match, and it shot great under the 190 grain Hornady A-Tip bullet. To my surprise I was achieving identical (if not better accuracy) and an additional 50 fps (3,200 fps). 5gr N570 ADG cases Fed 215mag A little over . Seems as if the N570 is dirty though compared to H1000 and Retumbo. Joined Apr 13, 2015 Messages 115. 825, it will stay there unless I throat it and run single feed. I'm trying to get to 2950 fps with Berger 156 eols. From what I found also on web it is extreme stable. curtiscd Well Reloader 26 Reloader 25 H1000 Retumbo Ramshot Magnum N570 Looking at reaching 2800 FPS in my 26" . This year I'm going to try Retumbo. Thanks for any info regarding first hand experience with these powders in a 28. 020" off. Joined I just got 2 lbs of N-570 from Powder Valley and all I can say is this is the worst handling powder I've ever dealt with. 33 is disappointing every time I use it. Found a really good load with 208gr and Retumbo running 3040fps. 97 fps/degree Savage ultralight retumbo Adg brass with the 195 has been incredible in my buddies rifle that I helped set up. Both are temp stable. Hours of internet reading later, I have discovered they don’t make powder. Kind of seems like people favor the retumbo and I'm leaning that way. So I have a fierce rival carbon xp 24 in barrel waiting on delivery. The H1000 may ultimately have a longer barrel life, but it doesn’t offer the velocity that you are getting with N570. Might get better velocity with retumbo but as I understand it H1000 can be a bit cleaner and more I’d like to try retumbo also. 338 Lapua. I got 2950 with h4831sc, it's the gold standard powder for the 6. 745 (lands at 3. Please enable javascript before you are allowed to see this page. Also, as expected no such data for 300wsm but does list Staball 6. Search. I’m no help to @mtmuley as I have leaned on mostly h1000 in most of my magnums. I'd consider it the best substitute available. IMR 8133. 8133 is darn near the same burn rate as N570. It makes excellent velocities in magnums and meters great since it is a ball powder. I know this question will likely cause 50% of readers to pop a vessel, but I have been reading a lot into gunpowder manufacturing. 300 rums and I only load 200 gr Accubonds either 91. RL33 is pretty close to n570 on the spectrum. Did find some Viht N565 and it's inbound, but I'm IMR Enduron 7977 or 8133. 5MOA/<20ES. It just makes sense that you got more velocity from N570 than Retumbo with less pressure. But surely is a slower burn rate. N570 was close to 100 fps faster. Retumbo vs imr 8133. Hornady also has data, and RL25 looks fastest, followed by N560, RL26, & H1000. Apr 12, 2024 #50 S Retumbo – Solid Choice for 190s. 5 grains N570 with 2815 fps. 20N29 was the most accurate but couldn’t get more than about 3150FPS out I'm looking for the 3 ghosts, H1000 Retumbo or N570. S. Retumbo vs RL33 vs VVN570. 030” OL 2. Mar 8, 2022 #2 Probably have better luck in the reloading section of the classifieds. To mitigate recoil as much as I can to enable self spotting when hunting alone. Attachments. Any data on other powders would be awesome too Thanks Loaded to 3. 5 gr RL-25 or 95 gr Retumbo both shoot great getting 3175 FPS Retumbo ADG brass Fed If you’re not hung up on the N5XX powders, Retumbo might also be worth a shot. Joined Jun 21, 2017 Messages 497 Location nv. Reactions: Calvin45, WYO300RUM, TXTrained and 3 others I think there should be some place holders between the upper end powders to show that. Log in Register. Retumbo works, but is slow in velocity. Thatonekid; Apr 24, 2018; Replies 1 Views 1K. It may be harder on barrels than another powder like H1000, but that’s just a side effect of high energy powders. For example I run 93 grains H1000 in my edge with 300 grain Bergers. I see it costs a couple more dollars. 611″ group, mild As it stands today, we’re quite happy with 3240FPS and very consistent accuracy in a 24″ barrel. Aug 8, 2017 #21 coyotezapper said: Heat of Explosion numbers for like powders. tmmcampbell; Dec 24, 2018; Replies 6 Views 5K. R. Lonewolf74; Nov 29, 2017; Replies 11 Views 11K. N570 is a couple less grains for the same velocity , it's also a little less case fill . You could get more N170 in the case with the normal sized kernels. Given that powders like Retumbo, H1000, and RL26 are known to work well in 6. May 11 66. Anyone have recommendations for what powder to use? I know not much difference between 350 vs 400 but there is a felt recoil difference regardless. Jan 21, 2024; Thread Starter #3 OP . 9 87. 0SD, . Question: Is N570 too slow for the 350's. C. The kernels are too LARGE. VV N570 vs RL33. N565: (NEW FOR 2018!) Designed to fill the gap between N560 and N570. Thread starter Rem81; Start date Jan 5, 2019; Help Support Long Range Hunting Forum Become a supporting member. 3220 fps ES 7fps packs a wallop on swamp donkeys sounds like its close to retumbo. There seems to be really good results and lots of info using 565, and H 1000. Collected a fair amount among with N,565. I have both N570 and 5lbs of Retumbo right now, want to know which powder works in peoples experience so I can focus my efforts on acquiring more for the . You might try RL33 for grins too. Thread starter motrapper; Start date Feb 15, 2022; Help Support Long Range Hunting Forum Become a supporting member. May switch back to H1000 for this rifle if Retumbo doesn't produce better results. Mar 26, 2014 #6 Mar 26, 2014 #6 waveslayer said: If had to choose between Retumbo or N570 which one? Retumbo and H1000 would be fine for this. 9% fill volume 73gr max charge 100% burnt R26 (don’t have) 2737 fps 93% fill volume Reason I bring this up is I really would prefer to run Retumbo (temp stability) vs the RE33. Any preferences between the two? Why? Any recipies to share? Thanks! I use N570 (but not in 28 nosler) In my test from -5 to 23 Celsius it moves 2. So throat erosion is more with N570. 5-284 Win and 8133 in my 28. BB401 Active If you want a temp stable powder in the same slow magnum burn rate, H1000 and Retumbo are what's available. Reactions: countrykang8, Remington Jim, JoshHaker and 2 others. I read some horrible accounts of RL-26 at high temps with near max according to vihts load data you might be a little on the slow side for the 208 pills, n560/n565 might be worth a short if the n570 doesn’t work out for I started using it because in 375CT 350 grain bullet category it gave about 50-75 fps faster than Retumbo and shot just as well or better. 3 grain increment, got to 84. I had always used Retumbo. I would look at retumbo or 8133 until you I tried 869, RL33, LRT, 20N29 and Retumbo but just couldn't get velocity and accuracy I was looking for. 9 gr N560 in the 2825-2850 range for 250 gr Lapua Scenar bullets with this rifle using Lapua Brass. Has anyone tried N560 or I have a 300 RUM with a 27" Rem/Varm contour steel barrel that I have been shooting the 215 Hybrids. Thread starter Barehandlineman11; For example, N165 is a very cool burning powder but n570 is on the hot end of the spectrum. 0 This one may be worth exploring with a faster powder and adjusting seating depth, I had them loaded to mag length to start with. May 19, 2019 #6 hseII Member. If had to choose between Retumbo or N570 which one? M. I think the first trial will be in my 7 max with the 180 gr Berger VLD. 3 grains at 2707 fps. New posts I load for five different . I am looking to start load development on with the 245's. They also have RL33 and IMR 8133. and velocity. Joined Sep 2, 2019 Messages 2,372 Location Komifornia. Currently testing 180VLD, also picked up a few boxes of 180 ELD-M. B. Been trying for the past couple of months to score some H1000 (son's coming home on leave from the AF in a couple weeks, and needs an ELR fix) but I've been too slow on the draw despite Discord and checking every damn site several times a day. 0 65000 15867 1. IMR 8133 is advertised as being temp stable, but that appears to be more marketing than fact. H1000 also seems to be a staple for the prc. I want to make full use of the barrel switching / caliber switching capabilities of the rifle system, and get a new barrel in the largest possibly 300 cal magnum cartridge I don't believe it is. You can’t always have your cake and eat it Retumbo H1000 Previously I have had velocities for 84. Mar 2, 2023 #2 NV HUNTER WKR. I think I fully mined that thread as of today (11/27/19) but if I retumbo vs n570 in 300 rum testing. The higher the number, the hotter the powder burns and the harder it is on the throat. I agree that if you do it, buy enough for the barrel and run it. So I'm not sure if it really is more bulky. I have n570 h1000 and retumbo on hand. 300 PRC with the 225 Grain ELD-M. Long range accuracy (700- 1050 yards) has been good Hey there all, I’m a hunter and getting into some longer range shooting. Joined Sep 6, 2018 Messages 2,043 Location Texas. Anyone have data that they have gotten that fps with these powders? I'm at 600 ft elevation I really like N570 in my 6. I have VV N570 and H1000 to work with, my current max COAL is 3. I know there's a 28 page thread on the 300 PRC but I'm done trying to wade through it Looking for data and velocity with 225's, 215's, and 230's using N570 and RL26 in a 300 prc. 5 CM, with the West Texas Ordnance SwitchLug system. My numerical burn rate chart shows this below. Berry228 Well-Known Member. For some reason some guys are against match bullets despite hundreds of guys great success with them. 5 at impressive velocities. Reactions: TxLite. My speed is around 2990 avg with 25" barrel. 3 n570 coal 3. I cannot seem to find any N 565 or H1000 kicking around, and I will not run RL26. I have to get my load developed before elk season. Articles. jpeg. I'll be using a 27" 9 twist 5R barrel. 120" FB. wapitibob WKR. I can not see how N570 can fry barrel a lot faster that H1000 if they have same velocity. 676 CBTO 3. But wow the accuracy and speed with low Some context: Have a switch barrel short action MPA BA rifle in 6. Buy Hodgdon Retumbo directly from Hodgdon. Both had good shot placement and good lethal results and performance. DENWA. 9 65000 16077 1. just got 4 cases of Retumbo. Here's 30 Nosler. Some of the powders they tried were StaBALL HD, Magnum, LRT, Retumbo, H4831, & IMR7828SSC. 20N29 was the most accurate but couldn't get more than about So is Retumbo. Retumbo - 3710 RL33 - 3900 N570 - 3950 . Now I build rifles based on if H1000 will work. Joined Feb 24, 2012 I have n570 and 568 to try once my barrel appears . 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. 65WSM Well-Known Member. Joined IMR 8133 vs N570. I would like to hear about specific experiences and load testing with Retumbo in this caliber and if there was a It is nowhere near as overbore as the other chamberings in the data. I’m running 7977 in my sons 6. I am a died in the wool . 375. milo 2. I have found similar relationship between the two powders in my 6. Search titles I started with Retumbo and IMR8133 with both 208gr and 225 gr. Classifieds. IMR 8133 is advertised as being temp stable, but that appears 570 is a better powder in every way. Good Retumbo shot it a little more then H1000 but not much started at 72gr - 2701fps 77. Reactions: danj and 338 dude. snowcreekkennels Well-Known Member. but thats why I bought 2 rifles. That's why it's interesting to I’m not reading great results with N568, not like I’d expect for something between N565 and N570 but I’ll give it a try and see for myself. Not those Tic-Tacs of N570! I was running Retumbo I used Retumbo in the Rums for years and it produced better velocity than h1000 with respectable es. wapitibob said: not my load Retumbo (have) 2736 fps 104. Below was today test load of N570 82 gr . gillettehunter. Does anyone know where I can get some, strategy to finding some or have a pound or two they are willing to part with? I don’t even mind paying more than Or if anyone has a dirty little source for Retumbo, RL33, or N570 lol. In two cases I've tried it in, Retumbo made equal velocity with approx 4-5% less powder at equal pressure observance from the rifle. 7977 is pretty close to 1000 and 8133 is closer to Retumbo. Had H1000 but gone. 1 MB · Views: 3,840 And a brand new 1lb that I would trade for a 8lb retumbo. I've got N570 and could push them faster, but there seems to be a point of diminishing returns with ELD's, push them too fast and the on-game performance may suffer. Apr 25, 2018. I'm sure it'll be accurate. Magpro performance VS Retumbo H1000 RL26. T. 39 3045 99. Along with Retumbo and Reloder 26, we will leave the N570 load development for a future day when we have abundant supplies. Reply. TheFishBox N570 really woke mine up but I could feel the throat burning with every shot lol, h1000 and 26 gave me similar results and Retumbo shot the largest groups of the bunch by a fair margin. Like to try it in a 300 rum with 230 bergers soon. 434 COAL 2954 fps ave . We just did a Just tried it for the first time today. 0 grains compressed running 3065 fps, no signs of pressure. LRH Supporter. 5 fps. Oct 8, 2019 #1 As title says. I'm pushing 215 Bergers at 3240 fps. Joined Apr 1, 2015 Messages 1,877 Location North Idaho. I did notice accelerated throat erosion with the N570 though. I switched to it in my 300 RUM. I'm stopping because I'm now shooting 390s and they like RL50 - but I'm also going back to Retumbo for the 350s because: harder than heck to get - no news N570 is the slowest of our high-energy powders and is an extruded, tubular powder type with grain dimensions of 2,3 mm length and 1,3 mm diameter. I'm a big Vihtavuori fan (it's always been the most consistent from day to day for me), but I'm a little disappointed in the size of the kernels Retumbo and n570. Due to the large kernel size (similar to 24N41 and 20N29), we recommend you to always weigh your N570 charges rather than relying on throws from powder measures, as they do not always deliver I have used both in my 300WM with good success. No N570 or RL26. If I try it later, I’ll add it. A couple of years ago the N570 was also not available here in Europe for app 2 years. Dec 24, 2018. Search titles N570 for retumbo. Jan 29, 2020. Maybe also look into N570. This was a They are grain for grain equivalent for pressure/velocity. I picked up a lb of 8133 for the heavy bullets but also stocked up on H1000 just in case that doesn't work out and I can't find N570. Same for RL33 which would Anyone have any experience shooting 215 Bergers ad N570 in the 300 RUM? I am running 230 Bergers at 3165 with N570 and no pressure in my 300 RUM. For now I’m sticking with N570. Mainly trying to decide between H1000 and Retumbo. 5gr going to test groups of H1000 vs N570 and see what it like at distance. Cross your fingers. For barrel life. I’ve been looking at imr 8133, and n570 but of course can’t get my hands on any . Mar 24, 2023 #9 B. Plenty of load data between my 3 apps to safely work up. 5-300’s but as others said it can be rough on throats. As good as this load shot (1/4-1/2 moa precision with ease). Joined Feb I’m just having my 6. I haven't even tried it yet in new barrel ! N570 was so accurate and low ES and SD. 765) and with zero pressure am getting 3115 for the 195. It’s faster, more consistent from lot to lot and temp stable. 338 LAPUA Magnum. Aug 4, 2021 #49 D. Mar 24, 2023 #4 W. 300 norma improved are getting 2950-3000 and that has 10gr more powder capacity. 417C264B-FB81-476A-9FA6-465741DF494F. 2 5. Vol1975; Jan 12, 2020; 3 4 5. Dec 1, 2017. Just wondering why it's not more popular. 5859D841-072D-43F3-AD44-5A6BC568BA6F. Rem81 Well-Known Member. 0 grs Retumbo, Remington brass, Fed 215M, and . Found best accuracy with 76. I have 300 Win Mag and 200 ELD X with Norma case ,rws primers and N570 in 26" Lothar Walther Barrel 10" twist and I have 3165 FPS and precision max is 3230 fps,all speeds are measure retumbo, N570, rl 26, magnum powders. Jul 25, 2017 did a quick 5 shot test group with 96. I'm saving the N570 for monolithic's. At 118-125g of powder per shot, at just 83. As mentioned, it’s a single-base powder. I've been searching a little on HD. this is why I bring the question up* Get access to live stream, lessons, the post exchange, and chat with other snipers. VV N570 is however sufficiently progressive burning that it produces near top velocities in many applications. Mar 20, 2020 #9 Has anyone had experience running Retumbo in a 28 Nosler? I was running N570 but am running out. elkaholic Well-Known Member. I settled at 82. I can see how it can be possible if You have with H1000 3000fps and with N570 3200 fps. I just bought 32 lbs of H1000 the same week N570 came Usually if you have a H1000 load, Retumbo is another grain. The flame temp is hotter than H1000. Picture above is that load at 654 Interesting how much powder is used vs Hornady reloading site. It's touted as being temp stable, but I haven't its test temp stability to verify. I wondered where the make their powder. I live in KC, so the Hodgdon HQ is close. I know of a couple guys who'd The N568 rifle powder The most recent heavy-weighter in our N500 rifle powder series is the N568. The slow burning characteristics and short-cut grains of Vihtavuori N568 high energy gun powder provide extremely consistent metering for long range competitive shooters, accuracy enthusiasts, and hunters alike. Barehandlineman11 Well-Known Member. I’ve got 19 pounds of retumbo but I’m pressuring out at 2930-50fps Vihtavuori N570 *C 96. David Emerson. Below pressure. What's new Search. 010 with 300 Berger EH for 3030 fps. Vihtavouri says it splits the difference between N560 and N570, but is closer to N570. Gonna chrono this week also to see where it's at (new chrono arriving tomorrow). 375 cheytac. if you ever shoot in high temps, the Retumbo will act nicer for you than the N570 Im thinking. It seems to have more sensitivity than the other V V's listed. I'm located in Butte, MT Click to expand Rocky Mountain Discount Sports in Cody Wy. 9 gr N570. New posts Search forums. had an es Forums. Retumbo was designed expressly for the really large overbored cartridges such as the 7mm Remington Ultra Magnum, 300 Remington Ultra Magnum, 30-378 Weatherby I couldn't find RL33 , but I recently bought a jug of VV N570 . Our load for that match was 68 grains at 2,930 FPS with I have a lot of Retumbo powder for my 375 Chey Tac and am about to start load development on a 338 LM Savage I just picked up with a 1:9 twist. It makes a truly If you want a temp stable powder in the same slow magnum burn rate, H1000 and Retumbo are what's available. Joined Dec 4, 2008 Messages 10,582 Location hauser, id. After a few months of shooting the course he switched back to his retumbo Load at around 3000fps. JJMoody Well-Known Member. 65 3032 100. Joined Oct Looking for loads and velocity with N570 and RL26 in a 300 PRC with 225's and 215's, or similar weights. Any input on N570 vs RL33? I just put a 30” 300 RUM together, but taking it back apart to make the throat even shorter so I can get ON the lands if need be fed from a Wyatt’s detachable magazine. All of the above listed, have safe charges up to 2800 and beyond. He was using a 28Nosler running the 195s at 3070fps with RL33. Settled on h1000 over rl26 since I've got a bunch and I use the 26 in my 7 saums. Its a slower burn rate powder than Retumbo. Forums. 5-284 Norma, which is the sweet spot for the cartridge. 657 COAL, started at 77. I have tried rl26, 23, h1000, h4831sc, retumbo, n560, n565, n570 in the 3 rifles I have had. I get great velocities with it out of my Sherman and also out of a 22-284. Accurate Magpro is a sleeper. What's new. 0 Guest. And N570 is 2 grains more than H1000. Big jump, but seating test didn't give me enough to justify single loading at . Latest reviews Author list. I have done exactly what your thinking but for a 28 Nosler. Would love to hear some of you guys favorite . 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