actually i never looked into it much, the only gun i've ever had that i got "serious" about accuracy wise was a Savage i bought back around 96 or 97, old style trigger (i even thin at that time only timney was making a replacement), it was a .223 on a long action (within a year they brought out the short actions).
I loved that gun, most accurate rifle i've ever had and hwile the trigger could ahve been better, it was better than many i've seen.
maybe (probably) i was being a bit overgenerous about the ruger 77 triggers. but then again i've only ever really had two examples to to compare to the rest of what's out there. many, many Ruger's in the house growing up, but only two M-77s a 77/22H (that doesn't really count as a real comparison) and a .223 that was "OK" trigger wise.
truth is i have not experienced a gun with a decent factory trigger, that was built after 1970.....
well untill this year when teh accu-trigger Savages came out.