Short barrel test - Sierra Outdoor Master vs Speer vs Underwood - 45 acp vs 40 s&w

[@HalfBreedMix]

H&K P2000 in .40 = Great taste in guns. I love still having a hammer and a decocker button.

[@hvega8199]

I heard the Sierra is a sig brand ?

[@californiahigh-desertconce7999]

I believe that is indeed the case. The difference is the case type (standard brass), and likely the gun powder - which would create the difference in velocity.
Great bullets nonetheless.