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Old January 5, 2014, 03:43 AM   #12
Ignition Override
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Join Date: February 18, 2008
Location: About 20 nm from the Big Muddy
Posts: 2,239
Be wary of some of those which have 2-groove rifling: Savage, LB and a small fraction of those built in England.
I had a Longbranch with a very bright bore which made nasty 'keyhole' gashes at 100 yards.

This happened repeatedly using factory Prvi ammo.
The problem is that most modern ammo has these BT bullets, but even with a nice bore/rifling, possibly a worn throat or muzzle seem to cause these really bad results.

The old Russian .311 bullets sometimes found for reloading have straight sides.
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