I've used thousands of rounds. Mostly handload but some Hornady custom ([email protected] 1265 [email protected] and [email protected]) and silvertip 175 GR @1200. I carried the winchesters for years before going to 40. I also used a few Norma 200s that chronoed over 1200 and some black talons. I have no intention of carrying my 10s and pretty much use handloads for deer. I hadn't bought any factory 10mm ammo in 10 years, maybe closer to 20. But Of the newer SD stuff what have you seen and heard about it.