Thread: AO Cold Bore Challenge
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  #13  
Old 10-02-2019, 03:11 PM
260 Rem 260 Rem is offline
 
Join Date: Nov 2009
Location: East Central Alberta
Posts: 8,315
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Usually not much difference between the cold bore (fouled) and warmed bore (fouled) in a good barrel ... probably less difference as the contour increases in diameter. I think a bit of oil increases pressure?
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