Guys! Looking through different scopes for 500 yards shot with 7 mm RemMag. Thinking about Swarovski 6x24 with Ballistic Turret. Do you know any other options?

Swaros are great scopes, but not really used much in the tactical arena. For tactical shooting, I would stay away from the ballistic reticles. Not enough granularity IMO. A ranging reticle like the Mildot is a much better option. Even better are the NP-R1 from Nightforce and TMR from Leupold. Without knowing exactly what you plan to do with it, some of the more popular tactical scopes on the market are Schmidt & Bender, US Optics, Nightforce, IOR and Leupold. There are others, but these are considered the best and are more commonly used in the "tactical" arena.

I have 7 mm Blazer and planning to use it in Mountains and on the flat open ground. I do expect shots 500+. my scope choice would be 6X24 with ballistic diales. Looking for advise

Out to 800 on big game lots of people use a straight 10x, such as a Super Sniper.