- Nov 3, 2010
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Sherman MEGA data
- Thread starter Sleepertruckguy
- Start date
I guess Im not sure what you were trying to accomplish...I hit pressure so I want to hit even more pressure harder? lol
once you hit pressure you stop, subtract 5% and look to work a load up around that # (for your load thats approx 4 grains less). this isnt a chase vel game...its a what does your rifle safely like game.
Ill tell you why...and I love VV powder, but I never use N5xx based powder. very temp sensitive. you shoot on a 90* day ur gonna have a damaged rifle or worse a damaged face.
GL
DT
once you hit pressure you stop, subtract 5% and look to work a load up around that # (for your load thats approx 4 grains less). this isnt a chase vel game...its a what does your rifle safely like game.
Ill tell you why...and I love VV powder, but I never use N5xx based powder. very temp sensitive. you shoot on a 90* day ur gonna have a damaged rifle or worse a damaged face.
GL
DT
I can't link the video, but here is a SS of said guru hawking his new 375 Yukon
Yes he's shooting that jug in front of his shop
You can't make this shit up....
Yes he's shooting that jug in front of his shop
You can't make this shit up....
Reloading like the OP is kind of like the pilot saying, but I’ll sub reloader
There are old reloaders and bold reloaders, there are no old bold reloaders
There are old reloaders and bold reloaders, there are no old bold reloaders
- Nov 3, 2010
- 10,307
- 22,379
Shiiittte pilgrim, hold muh beerReloading like the OP is kind of like the pilot saying, but I’ll sub reloader
There are old reloaders and bold reloaders, there are no old bold reloaders
I have a feeling what's getting Sherman in trouble is overstating velocities and people trying to chase those ideal conditions that maybe based off a overbuilt action with a 30"+ barrel or something. If you start chasing advertised velocities on 24-26" barrels and lightweight hunting actions then you're likely to run into problems. Realistically, and I'm assuming, you'll need to understanding and accept you'll likely get something between 7 SAUM and 7 PRC (or maybe matching) performance built on a medium action. That sounds good to me, I wish the 7 PRC was either engineered for a medium action or was full blown 7-300 PRC LA status.
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Glad to see this thread getting some views . N570 with Berger 190LRHT @ 3,000 FPS. Seating adjustment test. Under 5L is a 3 shot group, I didn’t have the balls to shoot another round into that group. This load has made 2nd and 3rd round hits on a 1/2 ipsc at a mile. So far I’ve only managed to blow up my hand, lost an eye, and blew up an action. Blowing every primer and using a rubber mallet to open my bolt. Only getting 30 rounds per barrel.
. N570 with Berger 190LRHT @ 3,000 FPS. Seating adjustment test. Under 5L is a 3 shot group, I didn’t have the balls to shoot another round into that group. This load has made 2nd and 3rd round hits on a 1/2 ipsc at a mile. So far I’ve only managed to blow up my hand, lost an eye, and blew up an action. Blowing every primer and using a rubber mallet to open my bolt. Only getting 30 rounds per barrel.Attachments
- Nov 3, 2010
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He's more than welcome to chime in, perhaps we are just mistaken.
Hmm, I wonder why he hasn't?
Hmm, I wonder why he hasn't?
I heard he’s who sold demolition ranch those hot rounds for that Serbu
You mean the Serbu Sherman Max or Serbu Sherman More Max.......
Hey, when you gotta compensate…:You mean the Serbu Sherman Max or Serbu Sherman More Max.......
The parent case is the WSM…but a lengthened neck, AI shoulder, increase in case diameter at the shoulder
My 28 Sherman Mag with 190 LRHT at 3200 fps (28in tube) is getting incredible accuracy. The 190g after 3150+ fps is outperforming everything else I own inside of 1,500 yards with minimal recoil to deal with. Rich knocked this one out of the park.
I have had great luck w 2 Sherman cartridges. In MY barrels I have reached Rich’s stated velocities w no signs of pressure! I have played w a few Ackley improved cartridges over the years w great luck also. Are they worth it? Only the reloader can decide!
I see alot of negative comments on here towards improved cartridges…Shit I hear it all the time, this cartridge I’m running into pressure before the stated velocity, let’s not forget,, ever barrel, bullet, chamber dimensions (headspace and freebore)can effect pressure. This is why we work up!!! Even factory chambered rifles w factory ammo has ran into pressure or came up short on velocity!
I see alot of negative comments on here towards improved cartridges…Shit I hear it all the time, this cartridge I’m running into pressure before the stated velocity, let’s not forget,, ever barrel, bullet, chamber dimensions (headspace and freebore)can effect pressure. This is why we work up!!! Even factory chambered rifles w factory ammo has ran into pressure or came up short on velocity!
You guys are blasting Mr Sherman for coming up short!! I don’t hear guys blasting Mr Tubbs when their 33xc pressures out early or that barrel doesn’t make velocity.
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