cci400 primers

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Re: cci400 primers

Postby pitted bore » Thu Jan 15, 2015 10:45 am

3rdgeargrndrr wrote: ... This is the first time I have heard of Lyman publishing loads for the 450.


Here's a brief review of the Lyman AR manual that I wrote for this forum six months ago: 450B data in new Lyman "AR Reloading Handbook".
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Re: cci400 primers

Postby BamBam » Tue Feb 03, 2015 10:58 pm

texrider wrote:I have noticed a difference in the flattening of the primers in all the small rifle that I reload for the AR. I have only used the CCI 400 and the CCI BR4. The 400s will flatten out for me a lot more than the BR4s for the same load in whatever caliber I load them in. I did have one primer get pierced with a 6.8 SPC heavy load. So that could be a problem for you if go heavy in the 450.


When working up a load I always preferred 400's as the flattening of a soft primer is what I was told many moons ago was your earliest pressure sign.

Don't know if that's accurate anymore, but it works for me..... YMMV

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