I think that's why real 'false muzzles' were removeable...you put it on to load, took it back off out of the way to shoot.
Sure was, and the false muzzle protected the barrel's crown, this is why most target rifles incorparated them...
Typical false muzzle and starter (note the 3 strip, paper patch holder between the false muzzle and the plunger)
The false muzzle was pinned and alignment holes were drilled into the face of the thick barrel to make sure the bullet or ball was centered and would start true...