I had a pt145 and it would ftl with a few of the hp I tried in it, I was told by the smith at my shop SOME short barrel guns ramps are to steep to load certain hp all the time with out a problem. When I bought my xd he also said the same thing, I have not seen this with my xd it eats everything but I still feel better knowing they feed well in my gun? Dont mind me I am weird with this shit!