I have a trigger pin that drifts as well. Doug Braker told me that if I got tired of recentering it, we could drill the recvr and put in a lock screw. That would work on a hinge pin as well
The hinge pin should NOT drift. If it is the hinge pin you are referring to, send it to Browning and put up a "stink" to have it repaired. This is not normal "wear & tear".
If it's the cocking lever pin, as in Jack's case, a new pin may correct the problem. After several times of disassembly, the OD of the pin gets scrubbed and so does the ID of the hole. When all else fails, sticking a set screw on the inside of the receiver will stop it from moving.
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