Yeah, but how do they shoot now?
For sake of discussion, if a rifle shoots 1/2" moa with visible tooling marks, what's to say that after you hand lap the barrel, the group size could increase not decrease?.
Just my 2 cents.
Do not argue with an idiot. He will drag you down to his level and beat you with experience.--Mark Twain
"I have opinions of my own 'strong opinions' but I don't always agree with them."--George Bush