Does Thompson (or what other companies) make a break open ('read that as easy to take down & clean') single function (i.e. just for use as muzzleloader) black powder type rifle - in other words, don't want/need anything like Pro Hunter ?
Based on your question, I can recommend a gun I own - the Knight KRB7. It's a modern in-line muzzleloader with fiber optic open sights, and really, "rolling block" is going a bit far although there is some resemblance. Point is, it's very easy to break down and clean. The action drops right out the bottom by pressing a small clip out of the way, then one simply removes the screw-in breech plug and there you are. Mine is in .50 cal, blued black with a black synthetic stock. I find it to be very dependable until it's been fired about 20 times in succession, at which point the powder residue might need to be cleaned out of the action and away from the primer insert. This is easily accomplished in the field with a blast of your favorite aerosol gun cleaner, a nylon brush, a short length of pipe cleaner, and some paper towels. It's a pretty simple gun, and very enjoyable to shoot, at least for me. The company itself has gone under, but one can find these guns fairly easily, I think. The factory ramrod that comes with it is the only thing with which I am at odds - it's a pretty flimsy hollow aluminum piece of tubing. However, a solid-aluminum replacement can be found on eBay for around $20. Google it and see what you think!
Location: i live in southern indiana,old country boy at heart
Re: looking for "single function" muzzleloader
ist off,knight rifle is still in business,they now only make one very high end rifle and it is more a status symbol to me than a muzzleloader.traditions makes a rifle called the vortec,it can be cleaned from the breech using only fingers to remove the breech plug and is very dependable.i have the same gun but as a pistol and its awesome. old semperfi