Well it's chambered but didn't turn out like we thought it should but I think we won the battle. I bought the Douglas barrel in new condition but it had been chambered. I was told it was 375 h&h and the barrel was stamped .375. Turns out it was actually reamed for 375 AI so changes had to be made. I cut barrel down so that the 38-80 was short chambered. Cut in with 375h&h reamer for headspaceing and throating. Then built a bushing for a 7mm STW reamer and ran in to clean up body and shoulder. After this we polished the chamber and it turned out great. Fireformed one brass late last night and this cartridge looks great. Water capacity is now 88.8 grains. I'll have to draw something up if anyone is interested in seeing exactly what we have. But with only four grains less than a 375 h&h in a cartridge that can fit in cheap military actions or leverguns, I think I may have some inquiries.

My hats off to Bob at Custom Gunworxs for all the help chambering. He turned this potential disaster into a promising wildcat.