I reload slugs for the 20 gauge. A gunsmith shop in New Jersey sells the proper sabots for using pistol bullets in the 12 and 20 gauge. The sabot is the most difficult component to find for loading muzzleloading type bullets from 250 grains to 325 grains. They also supply the loading data.
I am getting 1" to 1 1/2 inch groups with my 20 gauge Encore slug gun. The loads are not speedy at 1650 FPS but they still kill deer. Its impossible to duplicate "Factory" slug speeds because the powder used in their factory loads in not available to you.
I will assure you slug loading is a HANDLOADING process. Once the case is sized and primed every other loading process is by hand. You must ROLL crimp you slug shells and a fold crimp will not shoot.
The roll crimp die is available from Ballistic Products.
My present 20 gauge slug load is:
Hornady 20 gauge case..31.5 grs of IMR-4756..4 CCS 1/4" fiber wads..1 CCS red sabot with a Horn 250 gr. SST bullet..roll crimped. Cost is about $1.25 each loaded.
Velcoity is 1650 Accuracy at 50 yards is 3 in the same hole. 100 yards 1 1/2 inch or less.
Hoggy
