Paul...

I shoot them out of my muzzleloader as well.....

No real comparison though, completely different sabots, ( I use Dels MMP's in my muzzleloader), and more importantly completely different rate of twist inmy barrel.

My muzzleloader has a 1-24 twist barrel (whichis specifically designed around a 300gr .452 cal bullet.) My shotgun has a 1-35 twist barrel that was designed to shoot an almost full bore 12ga diameter projectile, with average weights exceeding 400-500gr.

Could the bullet shoot well in my shotgun...sure. I just wanted to point out that the odds don't favor it.

I am the first person to admit that I don't understand the laws concerning twist rates as well as I should ( ie the Greenhill twist formula). That is specifically why I asked Del for his thoughts on this subject. As a trueleader in the sabot/bullet industry I think his opinion is at least worth being aware of.

(remembera large majority of all 300gr SST's ever shot have come out of a barrel with an MMP sabot. (MMP=magnum muzzleloader products))