I have already as posted 357 mag, 40 s&w, and 9mm. There reason for a larger magnum would be for animal defense. The 357 can handle this well enough for now but it has its limitations compared especialy to 454 casull and up. The 357 can still produce 710 for human sd and around 775 for animal defence i doubt a 10mm unless handloaded is going to be a significant improvement on this. A 41/44 should inproved on animal defence noticably but 454 on up would be more significantly. Ím not saying i need a another gun for sd against humans just rather or not there is legal ramification if i did need to use a excessive caliber in sd since laws are written for criminals. Thanks for your help.