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Is the 7RM as accurate as the short 7 mags?

Re: The 162's.......

From Brownells

"A micro-fine bore cleaning and finishing compound that works as both a cleaner and a final polish to help keep barrels free of fouling and shooting their absolute best. Regular use gives your barrel a mirror-like finish that helps prevent the build-up of accuracy robbing copper fouling, plus greatly reduces cleaning effort. Clean your barrel as you normally would, then after cleaning with J-B Compound, follow with J-B Bore Bright to achieve a super clean, final polish."

A mirror like finish is the last thing you want. The finer the finish the more jacket fouling will get laid down. Mild abrasives have a purpose and that's to remove carbon fouling, manage heat checking and remove the last little bit of copper fouling if it bothers you.
 
Re: The 162's.......

Apparently I overlooked this thread back in March, I have been considering a 7mm RM and there is some amazing info here. Thanks to all especially Dave Tooley for the hard data and shared experiences.
 
Re: The 162's.......

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Dave Tooley</div><div class="ubbcode-body">I try never to put a rifle away dirty. S/S barrels are OK for a few days. CM start to rust as soon as they cool off. The powder fouling attracts moisture and traps it against the steel. I use a variety of cleaning products and don't want to slight any of the manufactures. I use a combination powder solvent with ammonia and I have an extreme ammonia cleaner for stubborn copper. I use either Flitz, Iosso bore paste or JB on a tight patch to work on the heat checking and carbon fouling.
How aggresive I get cleaning depends on the caliber, age of the barrel and how severe the shooting session had been.

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Just this calls for a new thread.