Every 77 I've been familiar with were very accurate. They cut no corners with the 77. I had a model 70 XTR 223 (post 64 of course) that would shoot flat based bullets well, but wouldn't group well at all with boat tails, which have a slight edge for long range shooting. I didn't know Ruger offered a 1:10" twist back then. Was it re barreled?
|