12-25-2011, 01:35 PM
brickcues Wrote:You should follow the manufactures recommendations on cleaning the barrel as all are different. Most of the top barrels makers hand lap their barrels which means the bore has a almost mirror finish. The reason to break in a barrel is the throat which was not hand lapped and still has reamer marks when the chamber was formed and has some sharp edges which need to be polished by firing. When a round is loaded, the throat which is rough, will scrape off fine particles of copper. Upon firing these particles are vaporized and carried and deposited down the bore. Copper sticks very well to itself so if left untouched it will build up quickly and makes the copper fouling harder to remove.
Source:
http://www.krieger.com
I couldn't agree more...well said.
May I add, take care of those High $$$ barrels and use a quality bore guide. I've seen many barrels damaged by poor cleaning techniques. For the guy shooting sub MOA out of the box.....do everything possible to preserve that barrel. I've spent many seasons shooting precision benchrest and most will agree that all barrels are not created equal. Sounds like you have a gem there.