Crown cleaning, with muzzle break.

[JOE360]

Looking for tips to get this baked on carbon without damage to crown. This is after 200 rounds. Barrel wears a self timing MPA break.

 

[Bill Norris]

CLR really works great at removing carbon on stainless ONLY.

 

[Jason Boersma]

Carbon remover and a plastic brush or q-tip works for me

 

[Jarhead6870]

I remove my brakes and clean the crown and barrel after every range session. That said, my big boomers can acquire a mixture of carbon/powder fouling along with some vaporized copper on the crown that takes a little effort to remove. I usually soak a patch in Bore Tech and press it on the crown and let it remain there for 15-20 minutes and then give it a few rubs. It takes more than one patch but it will come off. If the carbon is really stubborn, you can use a razor blade held at a very shallow angle and carefully slice it off

 

[tmwinds]

^^^ This. Works for me every time.

 

[gunsandgunsmithing]

Other than looks, which the brake hides, I dont think it hurts a thing. If you look at the pic closely, the actual crown itself is very clean. The carbon is on the face of the muzzle.

Dont get me wrong, no harm in pride of ownership and wanting to do due diligence, but IME, it wont build on the crown on a centerfire rifle and shouldn't hurt a thing, being there. The only caveat to that is I've cleaned muzzles that have been caked with carbon/oils/cleaners, etc for long periods, that had pretty significant pitting ON THE MUZZLE but not the crown itself. Maybe on a low pressure subsonic load but never on high pressure CF cartridges
Fwiw..

 

[Whitehunter]

After cleaning take a patch with oil and rub across the crown and install the muzzle break. This will make it a lot easier the next time you clean crown.

 

[FNSafari]

Clean more frequently if your game allows it.

 

[djporter]

I remove my brakes and clean the crown and barrel after every range session. That said, my big boomers can acquire a mixture of carbon/powder fouling along with some vaporized copper on the crown that takes a little effort to remove. I usually soak a patch in Bore Tech and press it on the crown and let it remain there for 15-20 minutes and then give it a few rubs. It takes more than one patch but it will come off. If the carbon is really stubborn, you can use a razor blade held at a very shallow angle and carefully slice it off

Ditto, except for the razor blade, let it set over night.

 

[ditter]

CLR will laugh at that carbon buildup. Keep the crown dipped in CLR for about 20 mins.

 

[Doug Beach]

Put the brake back on. Poof! No more dirty muzzle.

 

[PigButtons]

It has been my experience that cleaning up the carbon buildup on the end of the muzzle is rather easy compared to the carbon ring in the chamber. Lower temperature and no pressure to speak of means that the deposit is soft and easily dissolved with BoreTec C4.

 

[jelenko]

What is the purpose of cleaning the muzzle?

 

[Old Tanker]

I just spray the brake down with pressurized action cleaner and use q-tips to get some of the residue out. I might take the brake off one a year, if I’m feeling bored.