I just got my first .45 acp a little over a month ago, and got a little confused while browsing all the different ammo for it. I found a few sites advertising (Buffalo Bore and Doubletap) 255gr swc 45 acp+p rounds. Has anyone ever used these before? they sound great for carry while hunting, maybe even for hunting in their own right. I just dont want to mess up my new XDm, and this is the first I had seen .45 acp ammo over 230gr (thought it may be mislabeled long colt), so I want to ask someone before I break something.