Could be any number of reasons but you explain 2 maladies with it A) It wont close 'cause a bit broke off? What bit!! B) Then you say the striker when pulled back part ways wont snap forward like the other bolt it could be full of crap inside the bolt youve owned it for several years shooting it and we know little of how you cared for the rifle. We as shooters do pull the bolts down to clean the internals check protrusion and the F.P head for roundness and ensure the inside is clean and lightly lubricated. Who knows the spring may be cactus I always relieve the striker spring tension when my bolts are out of the rifle and stored. I'm just wondering if the bolt is at half cock you wont close the bolt on half cock anyway there are plenty smarter gunny's here than my experience with the Lee line.![]()