Originally Posted by ctsmith
mathman,

I'm not sure of SAAMI freebore but know that the .088 is between SAAMI and Palma. I think Palma runs about .070 give or take.


I've got it on the length. It's the diameter I'm interested in.

SAAMI: http://saami.org/PubResources/CC_Drawings/Rifle/308%20Winchester.pdf

The freebore section is .310" in diameter.

Notice the .3083" freebore on this one:



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