I disagree with you completely but needing only 1.5 MOA. We all need the tightest accuracy possible, because whatever scatter the rifle has will be added to our wobbles. It they all hit in a stack, you only hve your own wobbles to blame for losing a match. -- So when I make my customers a mold, this is how I think and work as I take the chamber / throat dimensions and fit the bullet.
To get the best, make a throat slug, using our pure lead slugs made for that purpose. Also, get a pack of push through slugs and feel out the barrel. The slugs will tell you how to proceed, but lapping will almost certainly be in order.
I killed a nice 3 point bull elk with a 7TCU in a contender carbine, which was my wifes gun. When the two bulls she was after ran up the mountain, she handed me the little plinky thing and said 'Go get one!"
When I got to the top of the mountain they were both grazing, and I took the 3X3 because I thought he would be better eating than the 6X6 beside him. They both looked the same size though so I probably should have taken the rack. But they don't cook up tender enough for me and I prefer to leave good breeding stock more than hang big horns on the wall. -- Interested in the load? A 130 gr LFN with softnose, over enough H335 to push it along at 2450 fps. The bullet broke his sholder going in, then his spine and exited the point of his off shoulder muscle. I knew it was capable of performing as I did my homework on making up the load. My wife would have been carrying some other gun if I were not sure of it's capabilities.