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Whats the chance...

 
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  #1  
Old 02-17-2011, 09:24 AM
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Whats the chance...

there is a powder that will work in a .270 and equally well in a .308. I am hunting for a powder for my buddy's .308 that I could try in my .270. I noticed that IMR 4895 was listed in the sierra manual for both calibers. Anybody have any experience with this powder or any that could work well in both?

The rifle specs. are:

.270 1-10 24"

.308 1-12 24"
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  #2  
Old 02-17-2011, 09:48 AM
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Re: Whats the chance...

The 4895 will work well in both. It's ideally suited to the 308 with most bullets weights, and works pretty decently with light weight bullets in the 270. It's going to be a bit too fast burning for optimum velocities in the normal or heavy bullets with the 270. It will work, but 4350 or 4831 would be better choices. They, in turn, would be a bit too slow for ideal performance in the 308. Sorry, but there's a reason there's so many powders out there.
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Old 02-17-2011, 09:55 AM
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Re: Whats the chance...

I don't recall exactly wich it was now, still have what's left of the powder. It was H4895 or H4198, recommended for my 6.8 SPC. nearly blew up my 24 inch AR after working up the load for my 18". Yes it was my fault, I backed the charge down, and even below the minimum it was still too fast of a powder.

Switched to Ramshot, never a problem. I think Hunter, or big game will fit your bill.

I have used Big Game in the wifes 270 Win, it's not listed for the 270 on Ramshot's load guide. It is listed for 30-06 and 308Win. I can't remember off the top of my head what powder weight I loaded, other than I used 130gr Barnes TSX. It will be a while until I can get to my notes.
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Last edited by BigSkyGP; 02-17-2011 at 09:58 AM.
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Old 02-17-2011, 09:57 AM
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Re: Whats the chance...

Quote:
Originally Posted by Kevin Thomas View Post
Sorry, but there's a reason there's so many powders out there.
I kind of figured this but one can hope though! lol
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Old 02-17-2011, 10:08 AM
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Re: Whats the chance...

Hey, when someone comes up with a universal powder that gives top end velocities in both my 223s and 338 Lapua's, I'm there!
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Lapua USA
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Old 02-17-2011, 11:51 AM
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Re: Whats the chance...

Quote:
Originally Posted by Kevin Thomas View Post
Hey, when someone comes up with a universal powder that gives top end velocities in both my 223s and 338 Lapua's, I'm there!
Kevin, what powder would you recommend for the .308 with 160 - 170 grain bullets?
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  #7  
Old 02-17-2011, 12:57 PM
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Re: Whats the chance...

I used Varget as a standard accuracy test powder for years, but there's absolutley nothing wrong with 4895, either. Lake City uses Reloder 15 for the vaunted M118LR Match/sniper ammo (175 grain HPBT) and I've shot tons of this for certifications over the years. Hard to argue with that, as well. And naturally, V-V N540 or N550 is great stuff for this weight range. Frankly, the 308 is a cartridge where it's harder to work up a "bad" load than it is to come up with a good one. Can't go wrong with any of these.
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