I had to hunt a Sabot Restrictive area once. After trying a few bullets, I expermented with a Rainier Plated 50 cal 335gr H.P. I had great results. When I had called Rainier, they stated that all thier testing was in smokeless cartridges, and none in muzzleloading, so I was on my own and at my own risk. They hit pretty accurate and HARD. I keep a box around now for non-sabot hunts.