Well you guys cook up the crow and I'll eat it. I have no problem admitting that I learned something new, that I originally thought different of. I have received a good education why the Ultimate Firearm rifle and the new Remington Ultimate rifle, ARE NOT DESIGNED to shoot BH209. Also why BH should NOT be shot from them. Its not because the rifle won't shoot or handle BH, its the actual design of the ignition system, nipple design and brass cases used and the properties of BH. I had shot BH from the Ultimate with no problems and excellent long rang accuracy. Although when shooting heavy charges of 135grs volume, the rifle shot better groups when swabbed every 3rd shot or so. During my last shooting session, I suddenly started getting considerable blowback. A lot of blowback! Something that had NEVER happened previously. My cases were terrible dirty. I cleaned the rifle barrel, then had my work cut out cleaning the chamber and action. When I checked out the nipple, it was clearly gas cut, BAD. I took photos of the cases and shipped them off within an email to Ken Johnston, who promptly called me. Yesterday I met with Ken at his home and we proceeded to make what he thought would be a 30 minute replacement. Now I wasn't scolded but, I was educated why I shouldn't shoot BH from the Ultimate. I watched Ken remove the barrel, then attempt to remove the breech plug. It became very evident to me it wasn't going to happen. Try as Ken did, that breech plug was not going to be removed normally. The barrel then went into the lathe and it was drilled. After it was drilled, the first easy-out wouldn't remove the remaining plug threads so a larger easy-out was used. As I watched the process I fully expected to ante up for a new barrel. Finally the remaining plug was removed. The barrel was cleaned and thoroughly inspected, then the new breech plug was installed. The rifle was reassembled, scope mounted and then handed to me while I was being told, "In the condition you first received it." As stated before, I wasn't scolded, I was educated why BH should not be used in the rifle, or the Remington Ultimate for that matter. Ken explained that he's replaced just three breech plugs prior to mine and EVERY ONE was because BH209 was shot from them. He told me that the replacement of a breech plug is extremely uncommon for him. It appears that any leak of gas when using BH in the UF or RU ignition systems, will immediately cut that nipple. Another reason that the brass have a life span of 3 to 4 primes. There's no doubt going to be some negative feedback on this but, I'll try to put it this way........ If the person who developed and designed the ignition system, the IDENTICAL system used in both the UF rifle and the new Remington Ultimate rifle, states DO NOT use BH209 in that ignition system and, Remington itself is promoting shooting only pellets, there's a reason.......... As always, I had a great couple hours with Ken Johnston and also learned much more. I'm proud to call Ken a friend, hope he feels the same. I'm happy as hell to own one of his muzzleloaders.