Re: 6mm schneider barrel
I have had a barrel re-bored by Danny Pedersen at Classic Barrel Works. He did a decent job but did not lap it. It fouls pretty bad. Rock Creek said the would lap it for me. I am getting ready to send it to them for lapping. It shoots decent.
I think it makes a difference as to whether or not the barrel was cut rifled or button rifled. I think Schneider barrels ar button pulled and that is a problem for re-boring. It's ok to re-bore a cut rifled barrel but button rifled is a different story.
Danny may have a way of doing a button pulled barrel with good results, I dont know but you may be better off just getting a new barrel. Re-boring is more geared towards expensive barrels such as corbon wrapped barrel (so long as they are cut rifled).
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.