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Old 07-11-2018, 11:15 PM
Salavee Salavee is offline
 
Join Date: Sep 2008
Location: Parkland County, AB
Posts: 4,249
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Quote:
Originally Posted by HW223 View Post
Grey (graphite) fouling is desirable . Copper in the Bore results in bullets leaving the group
That may be the case with some barrels, but not all. I have more that one custom barrel that won't shoot it's best until at least four or five shots have been through it. That includes both lapped an un-lapped barrels with either cut or button rifling.
Finding two barrels that react exactly the same to fouling is pretty rare from what I have seen. For the most part, I leave my barrels alone until accuracy begins to fall off. Sometimes it takes 40-60 rounds or better before that condition shows up.
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