ORIGINAL: Paul L Mohr
I don't think the actual sabot makes that much of a difference. It's just a jacket that breaks away, the spin will be the same.
However the velocity will be higher out of a shotgun most likely which would make a difference.
Paul
Pt. 1....The specific sabot used unquestionably makes a huge difference. If it didn't you wouldn't have gone on to explain that you need to try different sabots in different guns.
Depending on the degree of friction between the sabot and the bullet the actual spin achieved will vary. The degree of relevance to this discussion however is questionable.
Pt. 2.....Not true....most of my friends who have chronographed thier muzzleloaderloads w/ 300gr SST's are shooting in excess of 2100fps. The Hornady shotgun load is only achieving 2000fps at the muzzle.
In the end, as you said Paul...the only real "way to know is to try them"