Hi, I just picked up my new stainless SR45. Pretty excited about it as I think it is a great design. So, I take it down to clean and lube, and run into an issue during reassembly. When putting the slide back onto the frame the barrel's feed ramp seems to be catching on the frame. It is possible that I am doing something stupid but I own 6 other semi autos and have been taking them down for 15 years... It isn't too complicated. Any tips or anybody else have a similar issue?