I copied what he sent me
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There are many opinions about barrel “break-in” and I’ve even joked about it from time to time. Breaking in a rimfire barrel is real, but it’s different than what most do to break in a centerfire. Of course, opinions about how to do it runs rampant, but it’s important to note that one isn’t breaking in the barrel….they’re breaking in the chamber. The transition from the front of the chamber into the rifling to be exact.
I’m going to do a video on this, but I’ll explain it the best I can via email. It may be worth doing a FaceTime soon if you have the means to do so. So, this is how I do it:
- Shoot 20 rounds, make sure you’re shooting your best five shot groups
- Saturated numerous patches, one at a time of course, with Rimfire Blend and push them through the bore. You want the entire bore nice and wet
- Switch to your brush and push it in about half way, once it becomes wet enough, you can use it to scrub back and forth, pulling back to the chamber each time and working your way forward. Try not to push the bore past the crown and pull it back in across the crown, keep the brush in the barrel.
- Switch back to patches and do the same scrubbing action as you did with the brush
- Push a clean patch through until a patch comes out complete white
Shoot 50 rounds and repeat until 200 rounds. Clean again when you reach 200 rounds and watch groups closely.
Hope this helps.
Mike Bush
Design Engineer/Co-Founder
Chief Operating Officer
Vudoo Labs
Vudoo Gun Works”