A hardcast wadcutter is preferred in underpenetrating mouse guns because it
permanently cuts through flesh and bone, rather than
temporarily just pushing it aside as FMJ does.
Here are a couple of wadcutter examples:
1. Most 380 ACP HP’s are not good penetrators and a hardened wadcutter can make up the difference with deeper penetration into the vitals.
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380 Auto / ACP ************
Buffalo Bore:
100-gr. Hardcast Flatnose Wadcutter
Standard Pressure @ 910 fps in 2.75” barrel (Item #27E). Deep (Cutting) Penetrator. Use FMJ if you have feeding problems.
380 Auto Standard Pressure Pistol and Handgun Ammo
2. Same principle applies to the 38 Special, where in snubnose form, a heavier bullet or tougher hardcast wadcutter load might be needed to ensure adequate penetration.
Buffalo Bore Short Barrel:
* 150-gr.
Standard Pressure Hardcast Wadcutter (20D) @ 868 fps in 2” barrel. For barrier penetration & protection in the mountains.
In short, hardcast wadcutters CUT a clear path during deep penetration into the vital areas from underpowered handguns.
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P.S. In lightweight 38 Special 2" barrels,
standard pressure 158-gr. FBI loads can recoil less than +P loads with smaller projectiles. Example.........
Buffalo Bore Short Barrel:
** 158-gr.
Standard Pressure Lead Semi-Wadcutter HP (20C) @ 854 fps in 2” barrel. Less recoil & similar velocity as Speer’s 135-gr. Gold Dot @ 860 fps in S&W J-frame and Ruger LCR.