Well the reticle is based on a .50 cal bullet that weighs 250 grains going 2100 fps out of the muzzle. You might have to play with the dots a bit me thinks
The SABR reticle is actually a pretty kick-ass reticle for big game rifles. Here�s an example of how it works with centerfire rifles:
Assuming this load: .300 WSM running a 165 TSX @ 3100
The inside circle is 3.5� @ 100 yards. So, if you run your zero about 1.6� high at 100 it�ll impact inside that circle all the way to 250 yards (where it is dead on the bottom of the circle).
The first dot is +4� @ 100 (or +5.75� if you use the above zero) so it�s dead nuts at 400 yds.
The second dot is +6.8� @ 100 yards (or +8.5� using the above zero) so it�s dead on at 500 yds.
And the bottom of the post is +10� @ 100 yards (or +11.75� using the above zero) so it�s dead nuts at 600 yards.
Summary: You�ve got a perfect circle that the bullet will go into all the way to 250� precise aiming dots at 400 and 500� and the bottom post is dead on at 600. It�s just about the perfect scope for big game if you ask me.
