[quote=IZH27

12” steel at distances of 600 yds plus. What is the minimal magnification


?[/quote]


If you can see the target and have nothing better, 12 can work, but why screw around. To have fun doing it, 24X is the minimum I would want, and you're saying 600 PLUS......24 at 600 is like 4x at 100. Use 24x at that distance and you won't be wanting to dial it back to 12 or 15. And if you've 32x available, you'd be using that instead. Go to a shooter website with lots of serious match shooters and see what they're using for that sort of thing.