JB Bore Compound for accelerated break-in

[dogdollar]

Hi Folks,
I have read a million posts from people frustrated with a new handgun that is unreliable, and have had the manufacturer tell them it requires anywhere from 2-500 rounds to "wear-in".
First of all, a wear-in period should NOT be necessary, especially if you only find out about it after you've put your money down. Next....I think it is only intuitive to EXPECT that the gun will run smoother after the parts have worn in to some extent...just like any mechanical device. The difference between the two is that the gun SHOULD be reliable out of the box, and the wear-in just optimizes function...it shouldn't be necessary for reliability but, unfortunately, sometimes it is............
I personally have found that an application of JB's Bore compound on slide and frame rails, and then working the action by hand for a few hundred repetitions, well accelerate the wear-in process quite effectively. When you're done, field strip and remove the compound, lubricate, and re-assemble. You WILL notice a distinct difference, especially in a new firearm.
Just throwing this out there to those who might want to add it to their bag of tricks.......
DD

 

[DCR]

Never found the need to "wear in" any firearm. Operator error is the most common - 99.9% - reason for inaccuracy or less-than-desirable functionality after purchase, in my experience, and I'd submit that it's the same for all purchasers. Familiarity with the unique characteristics of each firearm, which can only be developed over time and use, is the reason shooters get better and more comfortable with their unit. It's unreasonable to expect a newly-acquired firearm to function exactly as another one a user has previously shot or become familiar with, much less a new one with which the shooter has never fired. Although absolute consistency in manufacturing is highly desirable, it's impossible to attain because of the infinite number of variables that affect each component and the manufacturing and assembly process. Work your guns, shoot your guns, get to know your guns, alter what you don't like, and repeat.

 

[slowhand47]

About loosening tight actions, Valve lapping compound you find at auto parts stores works well, and probably courser grit so faster acting. My 1943 Mosin 91/30's bolt rubbed the reciever extremely hard while cocking, I hand fitted it by filing first the imperfections on the bolt, then matching it to the reciever, finally using the lapping compound.