Well,I dunno because it said "G" on the water table and they told me it was a 10.I didn't try a shell and I am not fine tuned enough to tell the difference by sight alone.Serial number was in the 110,000 or 170,000 range. Lots of grease all over the gun and I could not break it down to check for sure.I'll have to go back and clean the gun anyway and will have a look.
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