I have inherited a Model 110 in 308 Winchester. The rifle was bought new in the 60's by my diseased father-in-law. He did not shoot a box of shells thru it, I have put several thru it. On two separate deer hunts, it has failed to fire, twice in '08 at the biggest buck I ever saw, and once last year at a small buck (second round fired, bagged him). At the range it shoots every time, very small groups. I am shooting Remington Express Corelok, 150 grain. Any advice?