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Posted On: 11/9/2020
By: Model M
A: This is indeed subsonic ammo. Federal recorded an average muzzle velocity of 1,050 fps out of a 4" test barrel, which is 75 fps slower than the speed of sound.
Posted On: 11/9/2020
By: Scott J Cooper
A: Yes sir, this 9mm ammo would make an excellent choice for a P38. It's loaded to conventional pressure, and its polymer jacketed bullet should generate less friction inside your antique's barrel to preserve it.
Posted On: 10/30/2020
By: Kevin
A: Hello Kevin! This ammo certainly has the same style of Total Synthetic Jacket bullet as the 150 grain load. The only significant difference is that the heavier bullet has a slower muzzle velocity – 890 fps, as opposed to the 124 grain load's 1,050 fps. Apart from its slightly flatter trajectory I don't think you'll notice a great difference between this ammo and the 150 grain version!