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Post by YankeeReb on Jul 5, 2017 20:13:23 GMT -5
I have two 6.5 Creedmoor rifles that are shooting good with a large rifle primers but I noticed that Starline brass is making brass for both and was wondering what the benefits would be with the small ?
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Post by smokelessk on Jul 6, 2017 7:27:14 GMT -5
Longer case life and potentially smaller groups. I haven't used the small primers yet in my 6.5 Creedmoor. That's because my 200 Lapua cases that were on backorder for two months just shipped yesterday. From what I have researched before making my purchase shooters desire the small rifle primers because standard deviation is significantly better than with large primers. Also the longer case life comes in because naturally the small primers have more case head brass surrounding them. Meaning a shooter can get more max loads out of them before the primer pocket stretches beyond it's capability to hold primers any longer.
I do have 55 Hornaday cases with large primer pockets. 5 of those have been fired 5 times each with no primer pocket issues. I am usually a middle of the road load though. A couple grains under the max in my Sierra manual. We'll see how the Lapua cases work out but from what I understand they are top shelf.
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Post by herman on Jul 22, 2017 4:22:02 GMT -5
I have a savage maxi hunter with 24 in barrel,don't think a small primer hole will do any better it is shooting so good now.I settled on 45 grs H4350 ,f210,and 123 a-max.According to hornady 510 bc. Using hornady brass,reloaded some as much as 5 times. First group shot out of this rifle.  |
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Post by YankeeReb on Aug 9, 2017 10:22:49 GMT -5
I have been using 42.5 gr of A2700 with a large mag primer and 129gr SST in two different rifles and it stacks them so I see no need to switch to small rifle primers. Im close to emptying my last 8lb jug of A2700 but have a almost full 8lb jug of H4350 so Ill try that too.
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