I just bought a new xd 45 tactical. I've researched and found out that this gun apparently doesn't like swc but that this issue was resolved with the XDm. I've also checked my slide as some have suggested saying that the newer XD's were corrected? Any info on this? Also, are the fixed sights calibrated for 230 grain? Are fp/tc ok? I'm looking for opinions as to which bullets are reliable and most accurate in this gun. I don't have much semi-auto experience, mostly revolver.