Randy,

I'm going to have to go to my notes on barrel measurements for my Fox 12 bores and see which still have the weight stamps. I know for sure I have at least barrels with 1, 3, & 4 stamps. If Mac's charts were pre-struck weights, you may ascertain that your 30" bbls were '2-weight' bbls but I'm really not sure how much material would actually be removed or how close the unstruck weights are w/out getting the book out.

Jerry