I had one of the Ruger 77/357's when they first came out. Thought it was a cool little rifle, up until I got it anyway.
Accuracy wise, mine didn't like lead bullets at all. It did best with 125 grain JHP's, and they weren't all that great either.
The bolt knob was tiny, and came real close to hitting the scope when you opened it, which made working it quickly slow and annoying.
The rotary mag worked fine with 357 length rounds, but would rimlock regularly with 38's, which was very annoying, and you had get it out of the gun and fiddle with it to get them unlocked.
I think a decent, well thought out peep would be ideal for the gun over the scope, but the only thing I found available was one from NECG, and it couldn't be mounted where it needed to be mounted, in the rear scope ring mount, because it interfered with the bolt, and up in the next slot, it was to far forward away from your eye. You also couldn't "ghost ring" because it needs the threaded in aperture to hold zero. For what they chare for them they arent worth the money. I ended up sending it back.
Over the years, Ive had this ongoing like/hate sort of thing going on with Ruger in general. I always liked the way their older 77's looked, and thought they were well made, but none of the ones I had really ever shot all that great.
Personally, as far as the 357's, and 44's too for that matter, Id really like to see something like a "workable" Timberwolf come back, but that doesnt seem very likely to happen at this point. Something like one of the smaller, lever action guns, really seems like the best way to go here.