What was your load and bullet?
Gun: CVA Magnum Hunter
Bullet: 250 grain SST/Shockwave in red sabot
Powder: 140 grains of Goex Pinnacle 3F
Primer: Winchester shotgun
The "red" sabots... are they the supplied sabot with the 250 SW/SST ?
This was the Hornady SST with their low drag sabot.