DRO to instantly stop(less than .002)I have not written any software for 38 years, but I can think of another way to do that. My lathe's foot brake flips a switch and spreads two brake shoes in a drum on the spindle. I could use a position switch on the ways to turn on a field effect transistor that would drive a linear solenoid that would pull on the foot brake pull bar.
...set the barrel back and rechambered, lapped lugs,new crown,re-did the bedding,etc etc. The rifle immediately started shooting after that...
First let me say that at the ranges I frequent in the Seattle area with 20 benches firing, my 2 moa groups from a 100 year old lever action will probably be the better than anyone else's group while I am there.
Bart Bobbitt shot a 3.25" 20 shot group at 800 yards in 1997 with his 308 with a Krieger barrel and trued bolt face.
If you are shooting 2 moa, the changing the chamber, lugs, or crown will not make a difference that is detectable or resolvable.
If you are shooting like Bart, then everything is important.
Bedding may not improve things much, but I have seen bad bedding throw things off by 4.5 moa.
In 2002 we built 4 rifles on Mausers actions in 257 Roberts Ackley with Lothar Walther light varmint barrels. Mine averaged 0.5" 5 shots at 100 meters with 75 gr Vmax and 1.0" with HNDY 100 gr. That was good [good for me, not good for Bart], but one of the other rifles shot 5.0". The glass bed job on the bad rifle caused the action or the barrel to bend as the screws were tightened.
