.40 caliber mini ball rounds for a pistol or a muzzle loader make ideal “Pumpkin Ball” rounds for the .410 shotgun. This is a favorite round with all our .410 shotguns because it can work in anything but a “Full Choke” bore. (To make a pumpkin ball round for a full-choke bore just substitute the .40 caliber ball for a .395 ooo buck pellet.)
To make this round all you need is:
3″ BPI Primed Skived Hulls
Federal 209 Primers
12 Grains of Alliant 2400
.410 Bore stump wad
2- 1/2″ Fiber Wads
Roll crimping tool
After you have prepped your hull and installed a new primer. Fill with 8 grains of Alliant 2400 powder.
Next, place two 1/2″ Fiber wads for spacers, then a .40 caliber ball, bore stump wad, and another .40 caliber ball.
Finish with a roll crimp. Do not compress this round. For a 2.5″ hull simply use 1 fiber wad or a nitro card in front of the powder charge.
As with all of our rounds you are the responsible party. These recipes are for educational purposes and the end responsibility is yours when creating and firing these rounds. Starting charge is 8 grains of Alliant 2400 and work up from there. My max charge is 12 grains from a Mossberg 500 410 shotgun with a cylinder bore barrel. Do not fire from a choked shotgun barrel.