Boarhunter - the Winchester 94 in 450 Marlin is the 'AE' or Angle Eject action, which is the reinforced action. Those Winchesters are fully capable of handling the 450 Marlin and that caliber in the Winchester 94 is one of the best field combinations you could ask for - light to carry, easy to handle and powerful enough for anything on the North American Continent, period.
Muzzle Brake?? Did those Winchesters come ported? Probably did to help with the recoil and yes, the porting will really sound off loudly (just like my Timber Carbine), which is why hearing protection in the form of some of those 'muffs' that quiet the recoil but allow you to hear better work well for many folks who use ported or 'braked' rifles. However, and I forget where I saw this, one of our posters had a 'dressed' Timber Carbine that carried a bit of a 'barrrel extention' or something that covered the ports (maybe it was a Black Shadow, I can't recall exactly) that helped cut down the porting noise. Maybe that would help. Mikey.