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http://accurateshooter.wordpress.com/20 ... surprised/

I made a statement about "fast" and "slow barrels in another thread http://www.utahconcealedcarry.com/forum/viewtopic.php?f=3&t=2686&p=25831#p25831 I think it deserves a topic all its own.

Basically differences in tolerances tooling and how well a barrel is finished (inside) there is a difference in velocity. Especially where reloading is concerned. I' have seen nearly identical guns where one loads max is nearly 200fps greater than the other guns max load with same cases, projectile, primer, and powder (rifles.) Differences with pistols and factory loaded ammunition is far less.
 
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