Breech plug cleaning?

[rebAL]

I know some guys here bore out their BP's, but other than that, how do you clean it out?

[1sourdough]

 Now this depends some on what kind of powder you shoot. With Pyrodex I have cleaned with the soapy water solution, dishsaop/water, the T/C white stuff, & a concoction of Murphy's oil soap, H Peroxide, & something else. I use Q-Tips, pipe cleaners, & a brass shotgun brush on the threads. I do the barrel likewise. AFTER the gun is clean I apply some lube, usually just gun oil or bore solvent(H-9). This is to protect the metal during storage. The next time I shoot or load I run a dry patch or 2 down the barrel & get the BP all nice & bone dry. I also use a $6 'welding tip cleaner' set on the BP hole when needed to keep it open. With the newer Blackhorn 209 I use mostly Hoppes 9 for a cleaner. I also leave the BP out of the gun until the next time I load. It's good to run a patch through the barrel after a few months of no use.

[gunrac]

I know some guys here bore out their BP's, but other than that, how do you clean it out?

They are not necessarly boring out the plug, but the crust that builds up inside it to the point where a major soaking would be involved to get throughly clean with pipe cleaner.
   The crust in the flash hole is the hardest to get cleaned out. I use a 1/8" drill bit in my Encore. Simply work it in by hand. You won't hurt the hard stainless. Other models may take a different size bit.
   I then use a bread wraper stripped back to clean the little hole. Brush down the rest of the plug. I do that first then a couple squirts of windex, set a few seconds  and wipe down. Repeat if necessary. Just takes a min. or so.