I have an Omega. Like was said in a previous post, all muzzleloaders build up a crud ring. At the range, you should use a patch moistened with your saliva, just stick it in your mouth and get it wet. Then place the patch over the muzzle and use your jag to push it down the bore.
Here's the important part; just before your jag hits the area where the crud ring is, start using very short back and forth motions with the ramrod. The idea is to swab free the crud ring little by little, instead of ramming past it and getting the jag stuck in it. This works.
Then after the initial wet swab patch, take two more dry patches and re-swab the bore normally. You should do this after EVERY shot, because in a hunting situation, you'll be shooting your initial round out of a clean bore anyway. And one shot is all that it will take, if your a good shot and have a good zero with the weapon. If you miss, you should've never left the range in the first place, until you had gotten it right.....
Do not aspire to be a slob hunter gentleman....
Kindest Regards,
-Will in Maryland