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Which brand 7x57 brass has most case capacity? I would would like to achieve 2700fps with Sierra 160 grain SBT's and H4350 at the least pressure. I know brass varies from lot to lot as well. Anybody anal enough to have checked case capacity the 7x57? Thanks Matt Matt FISH!! Heed the words of Winston Smith in Orwell's 1984: "Every record has been destroyed or falsified, every book rewritten, every picture has been repainted, every statue and street building has been renamed, every date has been altered. And the process is continuing day by day and minute by minute. History has stopped. Nothing exists except an endless present in which the Party is always right." | ||
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what weight of sierra are you talking about ? I use H=414 in the 7X57 and get 2900 with 140s. ...tj3006 | |||
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FWIW, I roll a Ruger #1 in 7x57 and with 145 Speer's I can get 2850 fps with H4350. I don't think I'd want to shoot that load in an old Mauser though. Regards, Robert ****************************** H4350! It stays crunchy in milk longer! | |||
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Oops! Meant to say 160 grain bullets. I fixed my mistake. Sierra 160 SBT's have pretty short baring surface for their weight. Matt Matt FISH!! Heed the words of Winston Smith in Orwell's 1984: "Every record has been destroyed or falsified, every book rewritten, every picture has been repainted, every statue and street building has been renamed, every date has been altered. And the process is continuing day by day and minute by minute. History has stopped. Nothing exists except an endless present in which the Party is always right." | |||
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Between Winchester, Remington and Federal, I have noticed that Winchester usually has the lightest brass. I dont use Norma, Nosler or Lapua brass so I dont know how they fit into the mix. All other things being equal, this should equate to greater case capacity. We are not talking a lot of difference here, though it depends on the cartridge just how much difference you may see. I just sorted a bunch of 308 cases and there was only 28gr difference between the lightest Win and the heaviest Federal. "though the will of the majority is in all cases to prevail, that will to be rightful must be reasonable; that the minority possess their equal rights, which equal law must protect, and to violate would be oppression." ---Thomas Jefferson | |||
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I don't know about comparitive case capacities but I get 2700fps from my 7x57 with 46gn ADI 2209/H4350 under the 160gn Woodleigh, among other loads. Edit to add that this is in Graff brass. | |||
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Thanks for the info! Matt Matt FISH!! Heed the words of Winston Smith in Orwell's 1984: "Every record has been destroyed or falsified, every book rewritten, every picture has been repainted, every statue and street building has been renamed, every date has been altered. And the process is continuing day by day and minute by minute. History has stopped. Nothing exists except an endless present in which the Party is always right." | |||
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I have consistently found hornady brass to be the lightest and assuming the same external dimensions that generally ato greater case capacity Mike Legistine actu? Quid scripsi? Never under estimate the internet community's ability to reply to your post with their personal rant about their tangentially related, single occurrence issue. What I have learned on AR, since 2001: 1. The proper answer to: Where is the best place in town to get a steak dinner? is…You should go to Mel's Diner and get the fried chicken. 2. Big game animals can tell the difference between .015 of an inch in diameter, 15 grains of bullet weight, and 150 fps. 3. There is a difference in the performance of two identical projectiles launched at the same velocity if they came from different cartridges. 4. While a double rifle is the perfect DGR, every 375HH bolt gun needs to be modified to carry at least 5 down. 5. While a floor plate and detachable box magazine both use a mechanical latch, only the floor plate latch is reliable. Disregard the fact that every modern military rifle uses a detachable box magazine. 6. The Remington 700 is unreliable regardless of the fact it is the basis of the USMC M40 sniper rifle for 40+ years with no changes to the receiver or extractor and is the choice of more military and law enforcement sniper units than any other rifle. 7. PF actions are not suitable for a DGR and it is irrelevant that the M1, M14, M16, & AK47 which were designed for hunting men that can shoot back are all PF actions. 8. 95 deg F in Africa is different than 95 deg F in TX or CA and that is why you must worry about ammunition temperature in Africa (even though most safaris take place in winter) but not in TX or in CA. 9. The size of a ding in a gun's finish doesn't matter, what matters is whether it’s a safe ding or not. 10. 1 in a row is a trend, 2 in a row is statistically significant, and 3 in a row is an irrefutable fact. 11. Never buy a WSM or RCM cartridge for a safari rifle or your go to rifle in the USA because if they lose your ammo you can't find replacement ammo but don't worry 280 Rem, 338-06, 35 Whelen, and all Weatherby cartridges abound in Africa and back country stores. 12. A well hit animal can run 75 yds. in the open and suddenly drop with no initial blood trail, but the one I shot from 200 yds. away that ran 10 yds. and disappeared into a thicket and was not found was lost because the bullet penciled thru. I am 100% certain of this even though I have no physical evidence. 13. A 300 Win Mag is a 500 yard elk cartridge but a 308 Win is not a 300 yard elk cartridge even though the same bullet is travelling at the same velocity at those respective distances. | |||
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Matt, I have not checked the 7x57. But for my 280 wildcats I found Norma to give me the most capacity. As usual just my $.02 Paul K | |||
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Thanks Paul, Mike, and all! Matt FISH!! Heed the words of Winston Smith in Orwell's 1984: "Every record has been destroyed or falsified, every book rewritten, every picture has been repainted, every statue and street building has been renamed, every date has been altered. And the process is continuing day by day and minute by minute. History has stopped. Nothing exists except an endless present in which the Party is always right." | |||
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My loads will be through a new 2013 22" model 70. Matt FISH!! Heed the words of Winston Smith in Orwell's 1984: "Every record has been destroyed or falsified, every book rewritten, every picture has been repainted, every statue and street building has been renamed, every date has been altered. And the process is continuing day by day and minute by minute. History has stopped. Nothing exists except an endless present in which the Party is always right." | |||
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Win. and Norma cases have noticeably more capacity than R-P. You need about a grain less in a Rem case. A shot not taken is always a miss | |||
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Not enough difference in powder capacity from one case to another to matter. _____________________________________________________ A 9mm may expand to a larger diameter, but a 45 ain't going to shrink Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing had happened. - Winston Churchill | |||
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WW is my favorite brass and has the most capacity and its cheaper if you can find it these days. I also like RWS in any form followed by Lapua..but were splitting hairs here, as its all pretty good. Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
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Thanks Ray. What do folks think of PPU 7x57 brass. Seems like I can find more PPU brass and ammo for sale than anything else, and at an affordable price. Matt FISH!! Heed the words of Winston Smith in Orwell's 1984: "Every record has been destroyed or falsified, every book rewritten, every picture has been repainted, every statue and street building has been renamed, every date has been altered. And the process is continuing day by day and minute by minute. History has stopped. Nothing exists except an endless present in which the Party is always right." | |||
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I bought some from Graf's a few years ago for the wife's 7x57. Had issues with the rim being thicker. It wouldn't slip into my shell holder. It also didn't want to slide under the M98 extractor. As usual just my $.02 Paul K | |||
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The brass I have found to have the most capacity in 7x57 is Sellier & Bellot, followed by Winchester and Hornady, in that order. | |||
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Have used prvi brass for over a few years now, including their 7x57 brass. Decent brass. Hardly Lapua quality, but I get a fair amount of reloads out of it. Yes, I've noticed a thicker rim on some of it, but pretty sure it wasn't on my 7X57 brass. Also, have come across some Prvi brass that when I began to resize it for the first time, gave me the impression it needed to be annealed, just too hard to resize....yep, annealing these pieces solved the problem. | |||
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Accuracy is much more important to me than maximizing velocity. I'll give up 50-100 fps for good accuracy. Accuracy will matter more at distance than a little extra velocity. | |||
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Graff and PPU (Prvi) are the same brass..I started using it for the 9.3x62 some years ago based on Vanderwalts book on Dangerous Game Rifles. It has more powder capacity in that caliber and lasts a long time and I like the annealed necks. I have found about half a dozen thick case heads over the yearsf in PPU of various calibers, but I can live with that, its an easy fix btw and in 9.3x62 it costs less than std 30-06 WW, Lapua, NOrma or other brass.. Also found Norma to last a long time but its expensive. I still prefer WW for most calibers simply because its cheaper and has more powder capacity in most calibers, and last about as long as any brass. RWS and Lapua are excellent brass, but they are very expensive..I have no problems with Remington brass.. Bottom line is I have had good luck with all of the major brands of brass...For my .223 and 6x45 I have used the IMI Israel manufactured brass for years and have a large supply of it. It's absolutely the best I have ever used but only comes in .223 as far as I know, maybe .308 but I have a 3 or 4 large coffee cans of new and once fired Federal brass for my .308... Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
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I have always found WW brass to have the largest capacity. Although WW does make brass with different headstamps so you might run across some Frontier or Hornady brass that has just as much or slightly larger capacity. velocity is like a new car, always losing value. BC is like diamonds, holding value forever. | |||
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