Okay. That does not even LOOK like a Henry rifle. More like an 1866 “yellow boy”. And is that really a brass frame, for a .44 mag?
Yeah, they are more like copies of an 1894 Winchester with a brass "Yellow Boy" frame. I have a replica of an 1873 Winchester in 44/40, which was a direct descendent of the original Henry.
A brass frame is more than enough for a 44mag rifle. The 44 mag may sound like a big deal for pistols but it basically has about the energy of a 243 or some such, i.e. it’s low end power for a rifle cartridge. It’s significantly more lethal on most American game at most normal ranges i.e. inside about 100 meters than many cartridges with greater ballistics, but lethality and ballistics don’t correlate strongly and that’s a sort of a long story.