I have a 10-year-old Ruger M77 Mark II .270 that is in excellent shape. I went to check that it was still sighted in this weekend for an upcoming hog hunt, and when I went to fire my normal Hornady ammo, it wouldn't fire. Tried multiple rounds. It dimpled the primer good, but didn't fire. Tried the Hornady ammo and it shot fine through my father's 30-year old Ruger 77.
I tried Winchester silver tip, and they fired fine out of my gun. (but that sucks because all I have ever shot is Hornady and that is what my rifle is sighted in for). So the ammo that worked perfectly for the last 9 years will not fire.
At first I thought perhaps the oil had turned to varnish causing sluggish strikes. Disassembled. Cleaned until pin, spring and pin cavity were spotless. Next day, same results. Now, it's not like I am trying to fire some military ammo with a super-hard primer. How can the pin lose its striking power that quickly? Is an upgrade to a 24-pound spring the only real solution?
Thanks in advance.
I tried Winchester silver tip, and they fired fine out of my gun. (but that sucks because all I have ever shot is Hornady and that is what my rifle is sighted in for). So the ammo that worked perfectly for the last 9 years will not fire.
At first I thought perhaps the oil had turned to varnish causing sluggish strikes. Disassembled. Cleaned until pin, spring and pin cavity were spotless. Next day, same results. Now, it's not like I am trying to fire some military ammo with a super-hard primer. How can the pin lose its striking power that quickly? Is an upgrade to a 24-pound spring the only real solution?
Thanks in advance.
