The bolt lift on my sons 243 model 11 was really tight so I started searching around and did the .38 special brass ball bearing mod. After that it still seamed really tight so I trimmed the firing spring by this link: http://www.calguns.net/calgunforum/s...d.php?t=450082 Also lubed it with antisieze. Went to the range today and the first 6 rounds fired then started missfires. I noticed the indent an the primers were not as deep as the first. Brought it home and measured the firing pin protrusion to be .065. cleaned all the antisieze lube off with gun scrubber, reassembled with some rem oil. Did not adjust anything just cleaned. Should I just get a new factory spring and put back to original settings???? and savage is saying I cannot order a spring because I'm not a gunsmith. Thanks