Or could cut some rifling in the choke area. Would be like a screw in rifled choke.I guess it would if you cut the barrel off behind the choke but why? If you want to shoot bp out of it just load some shells with it and keep the choke just don't use plastic wads.
I have no problems with loading my full choked muzzle loading trap guns. I use two nitro cards that I have wetted a little so they are more flexible, also that helps clean the bore as I reload. Start them in edgewise bending them slightly to get them through the choke, once you get past the choke, the ramrod will straighten them out and push them on the powder charge.I guess it would if you cut the barrel off behind the choke but why? If you want to shoot bp out of it just load some shells with it and keep the choke just don't use plastic wads.
Or could cut some rifling in the choke area. Would be like a screw in rifled choke.
To clean a full choked muzzle loader with a fixed choke, I use a jag that's smaller than the gauge and use three or four cleaning patches stacked on top of each other. This will squeeze enough to get through the choke yet still expand to wipe the bore. I use a 16 gauge jag in my twelve and a 10 gauge jag in my eight gauge for cleaning.
Of course, and I started to do just that after seeing a few vids on youtube about it. A high brass she'll would be ideal. But when I found out about the adapter it's so much easier. On an H&R shotgun you kinda have to use your thumb to keep the ejector from slinging your adapter out when opening the breech.Heck, I can pick up bucket loads of 209 primer adapters at the skeet range. Just punch out the old 209 primer, stick in a new one, powder, wads, shot, thin card wad, and then stick it in a break open single shot and shoot it.
You can load a bunch of them in advance at home.