With the 1911s in my carry rotation, I ride the slide forward to chamber the top round. Never a problem. Never fails to feed or go to full battery. Of course, I use only proper magazines with tapered feed lips that release the cartridge a little later and more gradually than most "tactical" mags...so there's that. And After about 50 chamberings with the same round, I might see .003 inch of bullet setback. Works for me, anyway.