You can do a lot of nice big bore ideas with NEF.
Just add weight. The 500 S&W I think is about 18"
twist and .500" groove diameter. Uses all the
.500" diameter bullets out there in bigger supply
than the .510" bullet other 50cal use.Something new.

Finally an 870 with longer 1" muzzle barrel. Barrel
is heavier than most all add on pump gun barrels,
and it is 25.5" long, Something that would really get
it on with the slower powder loads we have.
Rifled barrel is solid mount in receiver, scoperail solid mount.

It is the REM 870 Super Slug Gun.
Nice long heavy barrel, and thumbhole stock for
handling recoil better. Plastic case 3" slug loads of ours that
gets 600gr slugs to 1800-1900 fps, work great in this
Like the ones I load and roll crimp in second picture
that are setting behind the little vise, and the one in the
vise readt to be crimped...Ed