Ok, so just a quickie here....
I go to the range to practice, I'm banging 'em out hitting a nice tight area with my .22LR, bam bam bam hit hit hit on the mark every time center of mass. No problem whatsoever. Yeah me. So what's the problem? For the life of me, I can't hit the same with my XDm 45. I hit the target, but lower. It's not going where I'm aiming it, so either A) the sights are off, which I doubt, but it IS possible.... or what's more likely is B) *I* am off and need to learn to shoot the 45 better than I am.
I blame the shooter, not the gun..... but be that as it may, I still want to rule out a possible (even as remotely as that is) problem with the sight alignment. The gun isn't modified in ANY way, so how do I check the sight alignment?