HBN barrel treatment

Ok, I might need a few more to go.

Yes I am slowly working up.
Velocity increases are impressive.

Yesterday my 26 Nosler out ran a LabRadar chrono!!!! But my optical chrono still picked up the reading 3400with 140vld.

My 300wm got up to 3300 with 185vld with no pressure, but I really don't need that kind of jacket spitting velocity.
 
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