Hello, I'd be interested in a .357 SIG barrel for my 1026. I would also be interested in a barrel chambered in 9X19mm. I realize that second choice would not be considered very practical or useful but I 'd like to try it just for fun/curiosity/"in the interest of science", etc. I would prefer the #2/semi-drop in type. I would like to fit the spherical end, as you mentioned, and the hood to breech face to minimum dimensions myself. Headspace held close to minimum would be a big plus to me.

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NRA Life, COTEP 640