its a remington m700 mountain rifle, and does group very well for a toothpick barrel aslong as im doing my part it shoots inch groups and sometimes a little better at 100 yards. perhaps i should just overlooked the copper fouling and look into better ways to clean out the copper ive been using outers foaming bore cleaner which claims to get the copper out, it does get alot of the copper out with 3 to 4 consecutive treatments just not all of it. Any ideas or better methods to get the copper out? your input is much appreciated. thanks guys