I'm trying to lighten the pull on a #3 and have backed out the screw until it doesn't bear on the spring anymore. The pull is now about right, but the screw protrudes about 3/16" into the guard. I have three other Rugers and the pull now seems to be about the same on all three, but on the others the screw doesn't protrude at all. Has anyone had this experience? It looks to me like I could just grind off 3/6 on the end of the screw so that it's flush on the outside, but I'm really curious as to why this is happening but has not happened on the other three.

Any comments?