Well, the other night I cleaned out the bore pretty good. It had been lubed, but there was some rust gunk in there, not too bad...there's still some in there back by the breech, not sure how to extract it. Anyway, the channel is wide open and that's a good thing.
The nipple is a strange little tapered thing. I removed it, though I don't have a proper size wrench. I tried to screw in a conventional nipple, but the threads were a tad too big, so it wouldn't go. Yesterday at the rondy, my bud put a cap on her and tried to get it to go off, but the spring seems a might too weak. Not even sure if #11 is the right size, given the taper I mentioned.
Accuracy? Well, that'll be limited, especially given the fact the post for the front bead protrudes slightly into the bore at the muzzle...! What a riot!