hey flatshooter, i have a savage barrels.com .243 bull barrel. i used it all of the 2011 season at williamsport shooting 1000 yards. it worked like a champ , alot of 14" groups alot of 12" groups but one 6.625" group i'll never forget. using 105 a-max and 42gr. of h-4350 .020 off the lands worked the best.i just got a new 6.5 creedmoor barrel from them, thats next years gun.140gr. a-max with 39.2gr. of varget. good luck MARK25-06