Found info an a double that would work
for making 12GA FH. It's a Spanish 10 ga
on an 8 ga frame that we think Stoeger and
maybe others imported years ago. It says
No. 6 HG on trigger guard. It is over 2 & 3/4"
across outside of both barrels, chopperlump
barrel pivots, with heavy locking lugs,
and A purdey style third fastener.Top lever.
Barrels are big enough to use as monoblocks
to screw in heavy 12ga barrels, with same size
threads as my Savage and it being a huge action
could handle same loads as the Savage.Like
12-17,000 ft lbs. Ed.