AH senior member
On my 2017 bear hunt, I lined up a shot at 150 yards and pulled the trigger. My old sporterized Springfield 1903 just went “click.” I ejected the round, saw the primer was lightly dimpled, and chambered the next round. Luckily, the bear stuck around, and luckily, the next round fired. Later I took the bolt apart and found the Springfield’s two-piece firing pin and spring were covered in ages-old gunk. It cleaned right up and hasn’t caused any problems since.