How good are the Rock Creek barrels? I talked to a gunsmith that is going to build a .22-250 for me and he recommends a Rock Creek over anything else. Does anyone have any experience with these barrels? He told me that these are the barrels that the military uses on there sniper systems. Just wondering if I should go with his recommendation or go with a different barrel brand? If I should go with a different barrel brand what should brand?,Hart,Shilen,etc?) Thanks for the information I really appreciate it.