There are conicals that are full bore like Colorado conicals and there are conicals that need a sabot. Essentially the sabot is a 44 or 45 cal. bullet sitting inside a 50 cal. sabot. The sabot bullets used to be pistol bullets but have since been improved. I live in Colorado so I have to use full bore bullets, but have used Hornady 240gr XTP sabots down in Florida out of a Hawken and got great accuracy. You just need to scrub the plastic fowling out when you clean the powder residue. If you are going for deer then pretty much any bullet will do the job very well. Buy a few different ones that you like and go to the range to see wich one shoots best.