The answer is that you need to do some research and buy several brands of slugs and find which shoots best out of your firearm.
Right off the bat - the first mistake you made is not telling us which gauge shotgun you have or which barrel length. We are not mind readers.
Winchester Supreme Partition Gold Sabot Slug
Remington Premier Core-Lokt Sabot Slug
Remington Premier Copper Solid Sabot Slug
Read more:
http://www.shotgunworld.com/bbs/view...#ixzz11aWmAAbv