here' s my routine.....is the barrel free floating?....if not make it so.

then glass bed the action.....use pillars if you can.

Too bad you don' t reload....it would help.

Find some factory loaded Nosler Ballistic tips and try them.

Oops....I forgot something.....clean the barrel with an ammonia style cleaner.....sweets is a good one.....use a " mop" to swab the bore many times with a saturation of the ammonia smelling stuff.....wait ten minutes and do it again.....wait ten minutes and use a phosphor bronze brush and make at least twenty strokes through the barrel.

Use a dry patch and then another. Use a small amount of gun oil on the last patch and then take the gun to the range and shoot a five shot group.....throw that group away and start counting the next half dozen groups.

Don' t be afraid to be agressive with the cleaning.....it won' t hurt the barrel and if you have copper in the barrel it must be chemically disolved and removed.