CMP 410 Shotgun shells for SALE

Check this out if you have a Trench M6 Shotgun
410 GAUGE M35 SHELLS NOW AVAILALBLE. CMP has acquired a quantity of .410 gauge, 3 inch, #6 shot M35 military surplus shotgun shells. Our test showed that the ammunition patterned exceptionally well. Test were conducted at 20, 30, and 40 yards. We did find out that the M35 shells will not feed through a pump action shotgun. From our testing we will assume that the shells will not function in pump action, bolt action, or semi-auto shotguns. The shells are best used in single or double barrel applications or loaded directly into the chamber a single round at a time. CMP has two configurations for sale: Item number 4S410M35-25, 25 rnd boxes for $20.00 + $7.00 S&H ($12 to HI & AK), and Item number 4S410M35-450, wood case, 450 rnds. for $300.00 + $22.00 S&H ($29 to HI & AK).

I have some of this shot. Any idea what to reload with since the primer is not the standard modern shot primer? thanks, whf