All the rifles in my current stable will put an accurate ball on target out of a clean bore and won't change point of impact with a dirty bore.
Forgive me but we have to leave the normal discussions about muzzleloaders long enough to explain what is happening here.800 psi from a 16 gram CO2? Where did you find this data?
Respectfully,
sounds like the rifle wasn't breeched properly and the scraper got caught in the gap what your scraper loosened is cloging the ignition channel . Shooting might work (brass is alot softer than steel) But you might wind up peening over the edge of the brass scraper. Pull your nipple and clean the channel good. Don't put a bunch of 4f in the ignition channel. 5 grains should be more than enough if you decide to try and shoot it out. De breaching the barrel sounds like the best idea in this case. Find a gunsmith with a debreaching wrench.My big worry is that there was a soft spot between the barrel bore and the narrow patent breech...perhaps caused by a spot of rust or pitting. If the solid brass scrapper got wedged into that "pit", it may take quite a bit of pressure to remove it.
fjb, there is a good seal. After I stuck the scrapper, I wiped the barrel with a patch and bore butter to try and protect the work I had already done. When pulling the rod out the barrel there was a large suction pulling the rod back down into the barrel...like when you are cleaning a barrel in a bucket of hot, sudsy water. So I'm really sure there is a tight seal between the scrapper and the patent breech. Grenadier, that is my concern about shooting it out. If I use 5 or 10 grains of powder and it doesn't come out, that pressure needs to come out somewhere. That could only be through the flashhole/nipple. Could that put too much pressure on the lock? Shooting it out would be my choice for a stuck ball, but this scrapper has me worried as to the amount of pressure that would be required to remove it. So, for the sake of safety, I think I've talked myself into trying the CO2 dislodger, followed by the zerk fitting/grease gun and, if necessary, try to shoot it out as a last resort. If I do try to shoot it out, it'll be vised onto a table and fired with a looooooooog string.
Thanks for all your thoughts and ideas. It really has helped. I will post the results.
Jerry
I don’t believe that this question was ever answered. I may well be missing something, but isn’t this the crux of the entire problem? As I envisage it, a flat scraper is stuck in a round hole. Therefore there will be a huge gap and no amount of CO2, grease or shooting it out is going to have the slightest effect. Right? Wrong?Is there air leakage past the scraper? You may not be able to easily apply enough pressure to move the scraper.
Have you tried shooting it out? Sometimes the violent movement of the gas from the powder can cause things to lose their grip in the barrel and be blown out with the gas.Grenadier,
You have given me some things to think about. Thank you. I will update when I try the next step.
Jerry
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