Nothing unique about the barrel date code stamping by itself. In this one it is B c (January 1956). I suppose there were many 550s made in January 1956. Only one was made with that date code and my personal stamped code.
When I zero the scope, I'll give it a thorough test to see just how well it groups at 50 yards and maybe even at 100 yards.
Last edited by DWalt; 04-16-2018 at 10:17 PM.
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