The Ruger M77 in left hand is a good rifle. I had one in 300 Win Mag. It shot well. But the factory trigger left something to be desired. I had my gunsmith do a trigger job and it help a lot. The bolt was smooth. But the couple of things I didn't like was 1. the Weight. (Yeah it was a 300 Mag, longer barrel, etc) and 2. the 3 position safety. (hated it).
The rugers are fine guns and shoot well, but for me, I prefer the Savage 111 or 116 or the Browning A-bolt - both availabe in left hand and in 30-06.