Thread: 7mm rem magnum accuracy issue

Originally Posted by Chunk

Its the same factory ammo Kiwi Greg ( Hornady prescision hunter )Ive used Boretech eliminator . I do have Boretech C2 copper cleaner as well in the shed. Should I try that or dare I say it Autosol metal polish.?
Ill see what happens tomorrow re grouping. If it persists I will look at borescoping it. Then I suppose it will be scope swaps.
Ill let you know , cheers so far.

I had stubborn copper a couple weeks back, 4 treatments with boretech copper cleaner barely touched it, 2 minutes with bore bright had it back to new.