Could be barrel fouling or bedding. Use jb bore paste in tbe bore, check your bedding, barrel free floating? Good luck with it. Mel
Cleaning a Barrel to Bare Steel
(Safety glasses and disposable gloves recommended)
The proper installation of DYNA-TEK Bore Coat involves first cleaning the bore down to bare, dry steel. Otherwise the coating won’t be sticking to the steel, but to the powder, lead or copper fouling.
1. Ensure firearm is unloaded and free of any ammunition
2. Clean out all loose powder fouling using a cleaning solvent and clean patch. Soak patch with solvent and push through bore and pull back 6 to 8 times. Change patch and repeat this 6 to 8 times or until patch comes out clear of any powder fouling.
3. Using a clean or new (this is critical) correctly sized brass bore brush, wrap it with a clean, thick cotton patch and liberally soak with JB Bore Cleaner. This has a fine abrasive that will remove fouling but not affect the base metal.
4. Run this brush/patch combination back and forth inside the barrel 30 times reapplying fresh JB to the patch every 10 strokes. The brush/patch must fit the barrel tight and should take considerable force to move it and to insure the cleaning compound is working. If it is at all loose, wrap another patch around the brush and reload it with fresh JB and continue.
5. Clean the bore again with a cleaning solvent and several patches to remove the abrasive bore cleaner.
6. Use a chemical copper solvent to remove any remaining trace amounts of copper fouling, following the manufacturer’s instructions. Normally this requires 3 cycles to complete.
7. Degrease the bore with 3-6 patches and either denatured alcohol or acetone and allow to dry.
8. The bore is now completely clean to bare metal and ready for the application of DYNA-TEK Bore Coat.
We would like to thank John Barsness for the excellent bore cleaning instructions detailed above.
