it can be fired from any .45 ACP, but
the chamber has to be deepened, to take the longer case of the Rowland. Search for Clark Custom Guns, and then for 460 on their site. It is 35,000 CUP, not the 21,000 CUP of "Plus P" .45 ACP, so you can load it really hot, altho only in fully supported barrels. It makes the most sense in a lw commander, really. Better yet, a defender length slide, muzzle wt on a Commander barrel. Split Nose is a cast bullet, hollowpointed and hollowbased in a lathe, made of "non lead" solder, which is 95% tin, 5% antimony. Use such to cast the 155 gr Lee swc .45 bullet, and it drops from the mold at 100 grs. A centerdrill in the tailstock, simple mandrel-holder for the headstock (made of "slit' aluminum) let you hb and hp the bullets without marring them. Deepen the grease groove, slit the nose almost back to the grease groove. at impact, you get 3 segments, the rearmost one being a full-wadcutter shape, nose heavy, because of the big hollowbase. 70 grs is .45 wt, 2300 fps is the velocity from a 4" barrel, 13-13.5 grs of Bullseye is the charge.
For big animals, or more penetration, I favor having the spare mag loaded with 90 gr swc version of the above bullet. It's also hollowbased, to help penetration and accuracy, but not as wide or as deep as the 70 gr version.