Hello All:
Well, here goes my 2 cents. Get the 45 ACP/AR and you will be one happy fellow. I own 44 mags, and I can personally tell you the 45/AR will come pretty close to the 44. I have shot one for years. I used to just use 45 ACP cases, but over the years have accumulated 45 AR cases. You need a special shell holder on account of the thicker rim, but you can use the 45 ACP dies.
I am telling you, this gun is deadly on anything you shoot, and extremely accurate. I love mine.( I also love my other guns.) I have plenty of hot loads thru the years from Shooting Times, Handloader Digests, and Handloader mag. Try it, you'll like it.
I also have a 45 "Long Colt" I don't even shoot any more. That's not to say it's not good, it is; but the 45 AR is a pore boy's mag, cheap brass, and you can use cast bullets, too.
When I done said at least a dimes worth; not 2 cents, so I'm closing.
All the best,
Casper_zip