9mm Velocity Testing Shows Barrel Length is King

By AmmoLand Editor Duncan Johnson

By Josh Wayner
Gun writer, Josh Wayner, reveals the results of his 9mm velocity trial.

U.S.A. –

So what did I learn from the 9mm Velocity Test?

As you can see from the data, the 9mm is heavily impacted by barrel length. This stands in contrast to the results from my .45 ACP test, which was relatively unaffected. Across the spectrum, the .45 had no discernible or predictable muzzle velocity reading between barrel lengths with the shortest length often outpacing the longer ones. The 9mm had a very distinct and predictable ‘step‘ in every load tested. The Glock 43 offered the slowest MV with any given load, the Glock 19 always brought up the middle, and the G34 achieved the highest numbers.

I found this interesting as I was expecting certain loads to perform better in certain barrel lengths. I have found in my many years and many hundreds of …Read the Rest

Source:: AmmoLand