Thank you for the corrections and observations.

Not sure about the dixie slugs only for rifled barrels though, the writeup on their website that I found does say both. But hey, you may be right and they are BEST in rifled and crummy performers is smooth bores. I don't know, yet.

Also, I have elected to load my own slugs using ballisticproducts slugs. I ordered everything needed yesterday. It is not as complex or as expensive as I thought. The Thunderbolt using one of their middle of the velocity grid recipes will generate some impressive numbers: Kinetic Energy of 3113 (about that of a 35 Whelan); Momentum of 92.3 (same as a 404 Jeffrey) and a Taylor KnockOut of 97 (more than a 500 Jeffrey or a 505 Gibbs).

I realize the numbers are close range. And, that is fine for what I am doing: hunting close.