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FYI:
I got impatient waiting for support RMA; polished chamber my self; removed bolt and did this:
Step 1:
Took wooden dowel 3/8′ thick and cut 1.5″ slit on one end with thin Dremel about 1/4 inch deep and small piece of tape to hold it, the dowel was about 12-13 inches long. Cut wet/dry 400 grit 1.5″ wide and rapped it till it was just smaller than large end of a fired case; so .460 roughly using my digital caliper; put my dewalt drill on end and spun on end till ran it in and out carefully and slow about 3 times
Note Cheap popular dowel; broke dowel in middle as my paper winding was a bit too thick closer to the .470 inch ..fun getting paper out but did very carefully as it was fully out to walls and removing dowel left it lining the bore
Sand paper wouldn’t pull out so I used very long very skinny flat tip screw driver to collapse the paper on two sides slowly as to not scratch chamber till paper was touching in middle and then used cleaning rod very carefully on front to push out paper while holding paper in middle on receiver end and paper popped out ..this may have not been best way to start but I wanted to take any high spots out
Step 2:
Youtube showed person using soft scrub with bore swab; did the same with drill on one piece of aluminum cleaning rod, the bore swab I think was .45 caliber and ran that in and out 6-7 times; they used a swab and really fine steel wool wrapped on swab for next step but I decided to use Flitz instead
Step 3:
New bore swab and ran green Flitz polishing liquid for final 7-8 in and out gently
Step 4:
Cleaned with brake clean and then used CLP
Step 5:
Tested today and it worked like a champ …night and day difference; 3 test factory Hornady rounds look great no more scratches or heavy bolt lift after firing; would have done a bit more Flitz if needed guessing the key is to not over do it and go slow and easy I tried to be very careful on depth so as not to hit shoulder of neck
Saved money not having to ship this back if I ever got and RMA as requested to Beretta USA the importer
I would have preferred to have it RMA’d as the rifle was brand new and $899.00 but hunting season is almost and I already had gunsmith add 1/2×28 threads and small titanium muzzle brake
