I have had great luck with Winchester Supreme Platinum Tips.

400grn Sabot at 1700fps great trajectory and great knock down power. The longest shot thus far (H&R Ultra Slug Hunter) was at 143yds...dropped the deer in his tracks. I would not hesitate to shoot out past 150yds with this set up. I have it zeroed in at 100yds.

Slugs definately pack a whollop. Me and a friend shot 3 hogs with our slug guns. All 3 of them had holes you could look through, you could have slid a roll of quarters right through them. It was the first time I had used them in the field. I was quite impressed.

Winchester partition golds shoot the best out of mine but they are expensive and kick pretty well. the hornadys are less expensive and also shoot great but they can be hard to get a hold of. both rounds kick out a slug at 1900-2000fps but because the hornadys are throwing a lighter slug they are easier on the shoulder.