TCTex brings up some valid points; RE: AMMO.

FWIW: I have a friend who is ex-marine recon and Vietnam sniper; he tells me that .45 ACP Hardball is all you need and it does the job very fine. And that if you carry "self defense loads" that have the special noses and low flash powders and HP's etc. that if you ever shoot someone with them, that you had better get a good lawyer and borrow some money...