I reload my own 410 ammo for the boys.
Using the 2.5 inch cases and 3 x 36 cal balls is a good load for animals upto goat size.
The 36 cal balls weigh 80gns each which gives you 240 gns of lead and are great upto about 50 yards.
Also tried 158gn 38cal lead round nose with average results.
Al