Its very true that centering a precut patch is a pita.
Not really that much of a problem and a muzzle cut patch could present more of a problem if you don't cut it short enough. Excess patch material can get in the way of the flight. ...
Recently bought another .45 Seneca that had a scored muzzle. Dealer said he could not figure out why or how it got that way. I told him how and he thought that was pretty neat. There are a bunch of scored muzzles out there. ..
, I know how you like to tinker and in time, you will make you own accutriments. (spelling) !! I have made most of mine, including patch knives. I routinley wear mine at outdoor shows, sheathed and hanging from my neck...
Be Safe !!!