I just downloaded Strelock ballistic calculator, and it looks like the pay for version (strelock +) will calculate at any magnification. It lists the TDS reticle, and it's pretty slick. BTW, I have the same scope.

Be aware that speed is in m/s and bullet weight is in grams, so you have turn off metric units. A picture of the reticle pops up with the ranges for each horizontal line.

I think I may spring for the paid version.

Last edited by Sakoluvr; 10/16/12.

Faith and love of others knows no mileage nor bounds. That's simply the way it is.
dogzapper

After the game is over, the king and the pawn go into the same box.
Italian Proverb