The long brass 10GA FH case shown above has a Lyman
slug in a thickwall 10ga steel shotcup that BPI sells.
That's a 12ga 525gr Lyman.Makes nice lighter slug for 10ga.
The slug has bottom chamfered to set in cup tight
and a little epoxy makes it one piece that makes it a discarding
sabot style like a SPW. That makes it front heavy so that it
is as accurate as Brenekke KOs in smoothbore. I'm
also working with a guys to cast long hollowbase 10ga slugs
like the ones Federal loads. We are figuring out molds now,
will probably make slugs about 850gr. Here is picture of
my 10GA FH NEF with long brass case started in the chamber.
Chamber is set for that 4.050" brass case and will shoot 3.5"
plastic cases also. I am going to put on a thumbhole Survivor
stock like I have on NEF 8ga we did.Ed