look at some of the specialty ammo like Cor Bon, Grizzly or Buffalo Bore. I finally just bit the bullet and bought a 460 Rowland conversion kit for one of my 1911's. Takes about 5-10 minutes to install and you get 44 mag power. The only thing is factory ammo, although Buffalo Bore, Cor Bon and Georgia Ammunition load for it.

I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them. John Wayne-The Shootist