I have a Savage fp10 in the factory H-S Precision stock with detachable magazine. If I load one round at a time into the magazine , the bolt will pick it up every time. If I load it to capacity, 4 rounds, it will not feed every time. It will usually feed the first 2 then the bolt will just slide over the top of the bottom 2. Any ideas? Weak spring? I know I am not short stroking it because when it would do it, I would make sure the bolt came all the way back when I tried to feed it again and it would still go over the top. I sent H-S Precision an email a couple of months ago but never heard anything back. Thanks for the help.