Well, I have previously posted my brief 1st experience with B209. Had a couple of hang-fires at the range and that ended my experimentation just prior to hunting season. Went back to the pet load and decided to wait till seasons end before I rolled up my sleeves to give this thing an honest go. In the meantime,I had ordered a newBP for myOmega. Now, I have read all the post on the carbon build up in these breech plugs, but one thing that I did not understand was this 1/8 drill bit thing. I am meticulous about my cleaning and never thought I had a problem with the old BP. Today I finally opened the package for the new BP and after careful examination I realized that the hole where the primer sits wasdrastically smaller on the old BP than the new one. Didn't understand how that could be. Like I said, my gun gets prime care. Well, went to the tool box, picked out a few bits, and started picking away. I was careful because the stuff was hard and I didn't want to scratch or ruin a BP, because the hole looked like it was supposed to be the way it was. Long story short, after picking away, (by hand), that hole started to open up little by little and the crud just kept on falling out. When I was done, and the old BP was wiped clean, I was amazed that I was holding in my hand what looked like a new BP with a wide openfire channel.
Took the Omega out today and did some stump shooting with about a dozen loads in 30 degree weather andW209 primers and every shot went bag. Can't wait to go to the range and see what we have here. Moral of the story, I have received a lot of information from this sight. If anyone, like me, who has had a dissapointing experience with B209 and hang-fires, the problem may not be the product, it could very well be shooters error.

I clean my breech plug every time with a 1/8 inch drill bit and a nipple pick in the small flash channel I soak it in hoppies No 9 first

As a couple of the people here would be likely to tell you, I believe in getting all the accuracy available out of a muzzle loader even when it goes beyond whats useful in hunting.
It is my experience that with the Omega it is beneficial to accuracy to clean the breach plug every two groups, since I shoot a lot and this could turn out to be a chore I will tell you how I do it.
At Walmart they sell a flash light powered little screw driver it comes with a screw driver head and a 1/8 inch twist wood drill it will clean the area between the209 and the flash hole in a couple of seconds, be careful if you chose to use a metal drill as you might cut metal off the breach plug. The material in a TC breach plug is harder than the wood drill. Lee

Lee, Give us a link so we don't have to guess. Sounds very good for BP cleaning. I have an Omega and this will work for Black Horn. Chap