I have a CPP and like it. However, with my large hands my thumb rests against the slide release button sometimes preventing the slide from locking back on an empty magazine. I need to develop an alternative grip for this gun. Not carrying it yet because of this.
This came with both the steel and tungsten inserts. I tested with the tungsten. I probably shouldn't have said anything as my experience doesn't apply to .308. It was with a Rock River .458 SOCOM.
Hey look brother, I don't want to get into a spitting match. Let's just say you're right and move on. All I know is my shoulder hurt with and without it.
Sure, I understand the physics. It adds mass to the bolt. Combined with proper gas and a proper spring it slows down the bolt. I get it. That changes the recoil impulse and the felt recoil, but it does nothing for your shoulder when the buttstock has sharp notches digging into your shoulder. Also consider this was a hot .458 SOCOM round. It's a thumper.
My first .458 SOCOM was a Rock River that a guy bought for his wife to hunt with. Turned out it kicked too much for her so he sold it. I found one of these in it. The real problem with that rifle is the A2 buttstock has sharp edges on the back that dig into your shoulder. I shot the rifle with and without it and it did nothing at all for recoil.
I had put it in my cart during the group buy and then forgot about it. Came back to it a few days later and it let me complete the sale. I think it was a bug in the shopping cart. Jay was cool and honored it. If he didn't I wouldn't have blamed him.
Never thought about using the lathe to lap rings, but I see how it would work well for a one piece mount. Can you tell us how you protected the lathe from the lapping compound. I'd be concerned about the abrasive getting on the ways, but it seems like laying down a cloth over the ways wouldn't be safe.
I have a 20" Ultra Match on my pig gun. Very accurate, but I think it's a tight chamber as one would expect in a match barrel. If I get my loads close to max I see pressure signs early.