I shoot sabots out of a lot of my 1-48 twist rifles. My results vary almost every time I shoot. So I blame myself. Also I find that the weight of the bullet makes a big difference.

One afternoon with my Lyman Trade Rifle 50 caliber flintlock I was shooting 240 grain .430 diameter in green EZ load sabots with 80 grains of 2f black powder. I think they were EZ load as they loaded very easy, but the card had been pulled from the pack. I am certain they were harvester. Accuracy was outstanding. The next time out, accuracy was not so good. So like I said, I think it is me that is the accuracy issue.