I am trying to resurrect a Savage 99 (30-30 from 1904) that has sat in the closet with a broken stock for decades. I found a stock at a gun show and cleaned the old beast up and test fired it. I thought things were good but it missfires about every 4th or 5th round. I thought it might be my reloads (I am new to reloading) but I tried commercial ammo and it did the same. The primer marks are a little light. I suspected old hard grease around the firing pin, so I took it apart and cleaned the pin, spring and inside of the bolt. Same result. The spring does not seem weak but it is hard for me to judge. Is there any way to turn the shoulder on the firing pin to get a few thousands more travel, or any other suggestions. Any help will be appreciated. Thanks Grant.