Bought a box of 50 a few weeks ago and finally had a chance to put it through my Witness.
I don't have a chrono, but it definitely has more "snappy" feel to it than the Federal American Eagle and Remington UMC practice ammo I have been using. I let the Witness eat 50 rounds of the Federal, then went to the Sig. Despite any talk about feeding issues with the Sig, I didn't have any problems. I only ran 36 rounds of the Sig through because I liked it so well I wanted to keep 14 for my spare mag. My accuracy actually improved with the Sig ammo, then fell off somewhat when I went I went to a box of the Remington.
I'm done with trying different brands for a while. The Sig is the best reasonably priced 10mm ammo I have found yet. Will be going back to Cabellas for a couple hundred rounds this weekend. By the way, they're showing 200 rounds of Sig 10mm on their website for $89.24 right now.
-Phillip
I like the Sig 10mm ammo. It has some oomph, and would make a nice Delta Elite load due to the power level.