Fiocchi .38spl 125gr XTP Snub Nose Gel Test and Review
We shoot Fiocchi .38spl 125gr XTP ammunition from a Smith & Wesson Airweight Model 638 snub nose revolver with a 2″ barrel into Clearballistics ballistic gel to measure velocity, penetration, expansion/fragmentation, and retained weight.
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I founded TFB in 2007 and over 10 years worked tirelessly, with the help of my team, to build it up into the largest gun blog online. I retired as Editor in Chief in 2017. During my decade at TFB I was fortunate to work with the most amazing talented writers and genuinely good people!
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XTPs are pretty much "designed" to morph into a full wadcutter, and little more, upon impact. Which is not a bad way to go, if what you have is a low velocity, moderate energy firearm. 21", while not ideal, isn't that far off 18" max. Very possibly within margin of error. Of course, if you have a revolver, you may as well shoot a full wadcutter if you can find one. Those won't feed in autos, though.