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.308 Win Load Question

 
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  #1  
Old 08-16-2012, 10:41 AM
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.308 Win Load Question

I'm running a little short on my go-to powder for my normal loads for my 308 Win using the 168 grain amax (42 gr. of RE-15) and was wanting to try another powder. I have plenty of IMR 4831 on hand. The Nosler reloading manual gives load data for the 150/155 grain bullet ( 48 gr. - 52 gr. of IMR 4831) and for the 180 grain bullet (46 gr. - 50 gr. of IMR 4831) but none using this powder for the 168 gr. bullet. My question is could I not start between these two loads ( 47 gr. - 51 gr. of IMR 4831) and as long as I started my load development at or near 47 gr. be perfectly fine since the 168 bullet falls right in the middle of the load data for the 155 gr. and 180 gr. bullet?? I'm not terribly concerned about accuracy so long as it will shoot around 1 moa as I will only be using this for whitetail deer at ranges under 150 yards. I am an experienced re-loader but have never made a practice of working up a load recipe that my reloading manual didn't call for.
Any advice would be greatly appreciated.
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Old 08-16-2012, 12:39 PM
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Re: .308 Win Load Question

I like to have specifics from the bullet and/or powder mfg.

If not, then Quickload data is a good source.

Otherwise, extrapolating as you've done should suffice.

I would start at 46 or 47 grains based on the info you provided.

Stay safe/conservative as you approach/exceed the max load for the heavier bullet.

-- richard
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  #3  
Old 08-16-2012, 05:40 PM
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Re: .308 Win Load Question

4831 is not or never will be a powder for the 308 in my book.its just too slow of burning powder.it's a better powder for 30/06 and larger cases.
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  #4  
Old 08-16-2012, 06:02 PM
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Re: .308 Win Load Question

IMR 4831 seems a bit to the slow side for 308 IMHO. Performance, read velocity, will likely not be great, Not to say that it won't work, but 4350 or even better 4320 would be better choices. I have seen a few guys running R-17 with the 150+ weight bullets which would likely be a good choice from the R series of powders. In any case start low and work up as usual. YMMV
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  #5  
Old 08-16-2012, 06:26 PM
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Re: .308 Win Load Question

Quote:
I will only be using this for whitetail deer at ranges under 150 yards
4064 is ideal

but, I seriously doubt a whitetail can tell the difference at 150 yds per the OP's request

-- richard
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  #6  
Old 08-16-2012, 06:53 PM
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Re: .308 Win Load Question

Good call. How on earth did I forget IMR 4064.
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  #7  
Old 08-16-2012, 08:26 PM
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Re: .308 Win Load Question

Try Varget
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