12GA FH(From He!!)
Got some testing done with 12GA FH we just finished, using
730 gr Dixie Terminator hard slugs..First the gun is 25 lb built on a Savage 210 action,
heavy barrel 31 in long.Stock is full of
lead shot and epoxy in the butt section..
We got 2700 fps top speed with TERMINATOR
lead slugs.No leading..All shooting done with one case to see how they hold up,over 2 dozen firings and no resizing needed on the bottom
2/3 of the case yet, only size the top 1/3 to
grip bullet..cases fall out of chamber, and I have a minimum 12 gauge chamber as it is tight fit to get regular 12ga shot shell in it.Cases are made from BMG brass that
we added rims to..John at Bridger made and put rims on.Still uses BMG primer.can also fire regular shotshells.
Loads done so far with 730 gr terminsator--
230 gr HBMG---1550 fps
280 ge HBMG---2000 fps---21k load
260 gr W860---2200 fps
300 gr W860---2400 fps---27k load
250 gr 7383---2560 fps---35k load..slight comp.
260 gr Magpro-2430 fps
300 gr Magpro-2700 fps---35k load-11,800 ft lbs.
As this crappy weather allows,
Will test 750 gr Bridger bullet; and
A Barnes 3/4 oz sabot(should get 4 grand).
Maybe we can find a way to get a thick walled reciever done to put the Savage bolt, bolt carrier, trigger etc on,with slightly larger
barrel thread..Then it would have safety margin for 50-55k loads.. The 3 lug bolt will hold if in thicker reciever...It is a real super smooth
Rob on AR got his going also.It is built on a Borchardt falling block
action, He can run full pressures as action was for BMG case.He got
a 750 gr Bridger bullet to 3000 fps, 15000 ft lbs.Ed Hubel