I've shot lots of rifles and I have a Marlin .30-.30, BUT my new Ruger P90 .45 is a new animal to me. For one thing when I aim my rifle I put the target on the TIP
of the end sight. The .45 seams to aim better if I put the end Dot ON
the target and cover it. Is this normal for a handgun? I also have a bad tendence to pull the barrel downward just before or as I pull the trigger, so my shots are low. I need to work on that. Any suggestions??