You need to measure your own OAL in conjuction with the magazine, but never go below the min OAL in the books (bullet and cartridge)
In my Blaser the OAL of my 139 gr rounds is 3.1...Lapua published OAL (max) is 3.150 which is what I load in my Swede M41B
WilditssnowingyeaaaAlaska TM
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