Very smooth and much easier to push down the barrel compared to the MMP sabots I had been using. I used the short black ones with 250 and 300gr Hornady XTP and SST bullets behing a factory recommended load of 44gr of AA5744 smokeless powder in my Savage muzzleloader to obtain 2000fps and nice 5/8" groups. The sabots showed no signs of degradation. These were shot at 75 degrees F. I will have to see how the sabots perform as it gets colder.
I purchased these sabots to use with Hornady XTP .44 cal 430 grain bullets in my T/C Encore muzzleloader. I am very pleased with these sabots, and the price. I took a nice buck on the day after the opener of firearms season in MI with these sabots. I will definitely use these sabots again!