Which caliber 257 or 264 ?

benchracer

Well-Known Member
Joined
Dec 18, 2009
Messages
1,631
Long Time Long Ranger, where can I find information about the JRS .264 cartridge? I did a google search and only came up with the 6.5-280 RCBS. I am familiar with the 6.5 Gibbs, but have not been able to find anyone with a reamer for this chambering.

I am preparing to have a 6.5-06 type rifle built on a Ruger 77 Mk.II and would be interested in any information on the .280 based 6.5's.

What barrel length is needed in order to utilize the extra case capacity?
 

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