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Ordered a go gauge to check the chamber with a stripped bolt on my Rem.700 308 , the 1.630 go gauge and a .002 shim my bolt closed with the slightest resistance . From there I full sized my cases to 1.631 to 1.630 no more or less . Then I did the same using a sized case seating the bullet long and lower slightly in the die untill it closed the bolt without resistance to find the rifling , from there I can jump or jam , what ever works best . My rifle likes a .002 jump using a Sierra 168 MK . Takes alittle time but works well for me , I check my measurements with the RCBS Precision Mic.
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