HK45 + Jarvis 6.02" Ported Barrel. Loss of Velocity?
I have an HK45 with a Jarvis 6.02" Ported Barrel.
There are three small ports in the barrel. I don't have access to a chronograph, and i'm wondering how much loss of velocity I should expect from the porting of a longer barrel.
You'll probably still have some gain over the original.
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