I just received a new Model 7 and find that the bolt is not very smooth but more annoyingly it makes a squeak when closing the bolt. I polished up the raceways, the bolt body a bit, the edges of the lugs and I took apart the bot, polishing up the groove that moves the firing pin. Action is much smoother but the squeak is still there! It's got a thin layer of oil, but as I mention closing the bolt (rotating) makes it squeak. It only squeaks on closing, not on opening. Any ideas?
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