Quote Originally Posted by Robinhood View Post
Absolutely, the factory recoil lug is stamped by a pig punch press. The result is a piece of metal that in no way is close to being flat. The two sides of a recoil lug need to be parallel as they it is sandwiched between the lug nut and action face. I have ground factory recoil lugs and I can tell you that precision or parallel does not come close to describing a factory recoil lug.
+1 on a parallel ground lug versus factory. To some it may seem unnecessary got the non-parallel surfaces where barrel nut meets lug and then lug meets action will induce stress when the nut is torqued. Maybe not an issue on the first 3-4 shots but as heat builds and you see your groups walking around on the target (if they still remain as groups) and you might want to consider just replacing the factory lug.

PT&G has them in varying thicknesses for under $40 in either C/M or SS. A cheap improvement if you want to eliminate "good enough".