Barrell thickness for 20 ga
Can anyone point me to documentation that will provide the answer to what is the proper or acceptable thickness of the steel at the exit end of 20 ga. barrels. This is the 1929 V edition that I recently purchased. I went to the range today and put a box through it. Sweet handling and a clay buster, but when looking at the barrels when propped up in the rack I thought, "dang, they look pretty thin and dainty to me." I'd like to mic them and determine if they've been reamed for choking, shot out, or were just delicate to begin with when manufactured about a century ago. Thanks, gents.
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