I'm hoping someone might be able to answer a few 1911 reloading questions I have. The gun is a RIA 1911 in .45 Auto, 3.5 inch barrel. It has never had any feeding or other issues with factory ammo. The load I am using is 200gn SWC lead bullet, 5.6gn of HP-38, COL is 1.26-1.265. I got the load out of my Hornady book and it checked out with Hodgdon's load data as well as my Lee info sheet with a +- .1 grain difference between the sources. The issue I am having is that the slide is failing to lock forward into battery on some rounds. I know the max COL is 1.275, so I am well under that. I have shot some FMJ ball ammo that measures Federal 1.26+-.1 and been fine and also some Winchester JHP .230gn pdx1 that measures 1.20+-.1 and it works fine. My question is what should I try in order to get my reloads to function in my gun? Should I try a different load? different powder? My gut feeling is to seat the bullet a bit deeper, say maybe 1.24-1.25 COL and see what that does, but I don't want to try that with out running it by someone who knows more than I. Thanks for any help.