Re: Ruger m77 mark2
The issue with Ruger is mostly the Mk I's. I had a 7mm that could just barely hold 2" @ 50 yds. I swore I'd never own one again. I then had a friend who got a stainless composite in .223. That thing shot lights out.
Anyhow, fast forward to when I wanted a stock .257 from an American manufacturer. My custom .257 was going to end up costing too much and I was tired of having this done or that to finish it up. A Win 70 fthwt was in Wal-Mart. Full price was something like $459. But it went on sale. But the day I got there, one of the employees put it in the back for himself. I told myself the next one, no matter who made it, I was getting. So when a Mk II "Ultra-lite" came up at a Gibsons, I got it. Good or bad. Well it worked out good because that rifle killed nine deer, an elk, and an antelope.
With the right loads it would shoot sub-MOA for either a 3 or five shot group. Many times in a sitting. Not always. But good. Every Varmint/target grade Ruger Mk II has shot well that I've seen. The one's that don't seem to do so well are the standard barreled ones. But they'll hold hunting accuracy a lot better than the old ones.
I haven't been an advocate of them since that first 7 Rem mag I owned. In a standard weight barrel, I do feel you take your chances. I also feel if you were just going for the rifle, a Savage would shoot better. The set-up you describe sounds decent if you can get it for a decent price. There are enough Ruger fans out there, that if it doesn't work for you then you can sell it. So get it and start shooting it.
-good luck.