Mine was one of 640 shipped to Oklahoma Highway Patrol in March, 1979. 181- series. It's 1 in 10. It shoots in about 2 1/2" with good 55 gr. ammo, but I think it was "tuned" after it got here. Minis weren't known to be that accurate at the time.
Last edited by oldgunsmith; October 16, 2013 at 08:54 PM.
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