The right bullt in 357 Sig, 9x23, 9x25, 38 Casull
you can get AP performance, and also have some real tissue destruction, and practice with low cost bullets, and have a much better gun to shoot it from.
All it takes is to use the 95 gr lrn 380 bullet mold, and "non-lead" solder as the casting-alloy. It drops from the mold at about 70 grs. Depending on the barrel length and whether or not you hollowbase it, you are talking 2000-2400 fps.
you can get AP performance, and also have some real tissue destruction, and practice with low cost bullets, and have a much better gun to shoot it from.