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Old January 11, 2013, 08:01 AM   #16
Bart B.
Senior Member
 
Join Date: February 15, 2009
Posts: 4,645
5whiskey, how did you determine that most factory ammo is NOT loaded too far under max? Chronograph it?

If you did and your test barrel was not identical in all bore and chamber dimensions, mounted the same way, used the same lot of primers and powder, cases had the same neck tension and the firing pin had the same impact parameters, then your data will be different than the factory data.

I ask 'cause chronographing ammo's how most folks make comparisons.

What ammo makers use 26" test barrels?
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