Ever thought of casting your own? The Lyman 20 gauge 350 grain slug mold drops a very nice slug, and you can cast them from alloys ranging from 30:1 up to pure linotype. The mold is designed for Lyman #2 alloy (This is made up of 90% lead, 5% tin, and 5% antimony.; To make 10 pounds of #2 Alloy, use either of the following recipes: 9 pounds of wheelweights + 1 pound of 50/50 (lead/tin) bar solder or 4 pounds of Linotype +1 pound of 50/50 bar solder + 5 pounds pure lead.) and can be water quenched for a BHN of about 20. That slug will be plenty for any deer, black bear, or wild boar. besides, you can cast these slugs and use in standard hulls with standard shotshell wads.
I will also give you some numbers as well. The retail price for 180 20 gauge lightfield slugs (385 grains) is $439.95. The Lyman slug and mold is roughly $100.00. primers (200 of 209) is approximately $15.00 (depending upon retailer). 20 pounds of hardcast wheelweight lead can be found on ebay for $25.00 shipped. Lee ladle is $5.00, lyman electric furnace is $40.00, a pack of 250 shotwads is $7.50, lee load all is $50.00, and a 100 pack of shotshells is $25.00, and 2 pounds of powder is $50.00.
Total cost is $317.50 for bulletcasting and reloading equipment. I think the bulletcasting setup is better way to go. Then you get slugs you know will work as you will know how hard they are for penetration.
ST762