Having played with both(and some friends') in three screw models, in 9mm, surplus is OK, reloads a pain. Accuracy is average at best. New Models are too heavy for those cartridges. 45's very different. Usually very accurate. Handloading is no problem. Handy setup, since ACP's run through a progressive loader like water. No .45 single action should leave the factory without an ACP cylinder! Got one for my SAA years ago.