Rugers are my MOST rebuilt guns. I currently have 4, only 1 is stock block and that's a #1 sporter in 45/70. My 10/22 is a factory fancy- schmancy altemonte model that I had CT Precision Chambering accurize (recut chamber, recrown, bluepring, etc)...well worth the $ spent.
I have 2 M77s and a MkII. My 270 was purchased in 1982 and I shot out the barrel, so I had a shilen premium barrel installed w a timney trigger and glass bed the ultralite factory stock...it's fabulous! I have a m77 in 300win that was a factory special with a semi varminter barrel, had that replaced, same set up as the 270 by Brown Precision and a Brown fiberglass stock. These are my 2 favorite rifles!
I also have a MKII in 243, another ultralite. Shot horribly with every load I tried...glass bed, timney trigger..sickening...so off to ERShaw and a new 22" fluted barrel (a bit heavier than the ultralite one, my mistake, I should requested their ultralite barrel) and had the action blueprinted. So far so good, a dramatic improvement except for the weight, 8.5lbs....too much $$ invested to sell at this point.
I also have a several remington 700s...I just install the timney trigger...that's it...good to go......
Ruger actions are terrific platforms though I prefer the tang safety models over the MKII. They are a heavier action that the rem and have a fixed magazine length which severly (in my opinion) hampers the overall cartridge length. For example, I currently load 30/06 cartridges to 3.4" and can easily have a much longer cartridge length with plenty of room in the magazine well if I want in my rem700. In all the long action rugers, I can only have an overall max cartridge length of 3.35 or else the bullet nose rubs or won't load into the mag.
In short...I like the M77 -tang safety action alot. I do build from these actions and expect I will again even though the remmys come good to go, right out of the box with an upgraded trigger. I have no experience with the hawkeye....