I have the Marlin 1895m in .450 Marlin and I love it. It’s a hoot to shoot. It’s easily my favorite “brush gun” the power of it impressive. I once accidentally shot completely through 2 wild hogs with a single shot, got both shoulders on the first one and entered the second in front of one shoulder and exited just in front of his hip.
I believe I bought it new early in the manufacture as is only has a 4 digit serial number on it.
Ruger made a M77 chambered in it, made possible (easier) by the belted case, I know, their are 45-70 bolt guns to.
You can definitely count me in as one the people hoping Ruger gets Marlin to bring it back, I’m certainly not holding my breath. For some strange reason I’ve also been wanting a BFR in .450 Marlin as well, and that’s just silly.
As much as I love my .450 the “you can do it with a 45-70” people are correct, I’d argue pushing the limits is slightly easier and safer to do with a .450. But my bias is admitted.
As far as the Win 94 in 450 Marlin, I don’t know much as I’ve never seen one much less shot one.