I never owned a Ruger so I decided what the heck I might as well give them a try. Ruger 77/50 NIB. Grey laminate stock. I accidently deleted the pic I had of it so I will have to wait to post one.
Actually i don't know if I will even shoot it. Might just look at it.

Lucky for me you did that with the New Englander too.

I did that with the 54 cal MK85 predator also that I traded for the Ruger.

They look like this...

yep
The one on the bottom is what it looks like.

No floating the barrel with that sling swivel mount.

I own a few Rugers and love them. I also picked up a new Ruger the other day. It is a model M77 MarkII in 300 Win Mag. Got a great deal and couldn't pass on it. I am going to work up some loads this morning. Had it at the range the other day and was very impressed!!!

Haven't shot the 77/50, but I am a fan of Ruger products - IMO one of the better American companies right now.

I've never seen one in person. They are a ML that has always intrigued me though. I look forward to seeing your thoughts.

Still own mine and absolutely love it. I don't hunt with it much anymore but when I did it is a shooter. I am setting it up next year for my daughter to hunt with.

90 grains loose 777, hph24 sabot, with 250 grain barnes expander or
300 grain gold dot and it would shoot a ragged hole at 75 yds. That was as far as I ever shot back then. Mine was the natural hardwood version.

Word of caution, do not buy the 209 conversion kit for it. Something about the extra punch will eventually file down the sear and your muzzleloader will have a hair trigger that is dangerous. Flip off the safety slap the stock and it would fire. I sent mine back and that is what they told me. Keep it cleaned and I never had trouble lighting 777 with a #11.

It don't even feel like a muzzleloader, easy to the shoulder and feels more like your favorite rifle. IMO.