As an owner of the T/C Triumph I have some experience with specialized scopes.. Mine has the 3X9 Leupold Ultimate Slam with the DOT's system..I can tell you that the DOT's are right on the money with the 250 grain Shockwave and 3 (50) grain pellets.. I've shot it out to 300 yards and could not ask for any better aiming points..they are right on the money...can't speak for or against any of the others but I'd find it hard to believe they could be any better the Ultimate Slam..it's even set up for 3 pellets if you want to tone it done some..amazing..