A .355 slug. Thats hilarious, is a 22 ,a slug too?. 357 sig cannot match 45, want proof?? Since most people look at ft lbs of energy, which really tells nothing, but find ya 357 sigs highest.. i think its 506, with a few goin a little higher. Ok, now look up 45 in 165 and 185 +p! Ok there ya go.. 592 586 and doubletap has one at 618, now thats gettin close to 10mm, kinda, but it blows the siggy away. Peace.