Yes I have shot my twist bbl'd Hs with appropriate loads. I have told this before but has been some time ago. A good number of years ago I purchased an H "Parts Gun". The left bbl had a crack in it 14" up from the breech. From the appearance of it I think it had been struck on a sharp cornered object which cracked the bbl along a seam of the twist. It had apparently been fired then & had lifted up a flap. The break was about ¼" long around the bbl & lifted up enough you could look inside the bore through it. Out of curosity as to what it would do, I put my dent plug under it & hammered the flap back down & it became very hard to see. I then proceded to strap it into a tire & remotely fired several 3¼de-1 1/8oz factory loads through it with no noticable affect. I then fire some 3 3/4de-1¼oz factory "Duck" loads again with no affect. I next fired some 1 3/8oz handloads using Unique powder in a low velocity load which probably did not stress it as much as the high velocity factory load. It has sat in the cabinet ever since in case I should "Ever" need a part from it & to this day in order to find that crack I have to examine it with a magnifying glass, & would not find it at all if I didn't know right where to look. In spite of it already being cracked, all those rounds of regular factory ammo, did not open it back up. Of course I don't put it to my shoulder & fire it, but I do the sound ones & with lower pressure loads.
