I just noticed that there is a 1600-B version now. What is the difference between the 1600 and the B version? Thanks!

Like its predecessor the CRF 1600, the CRF1600-B will determine ranges out to 1600 yards. However, it differs in a few dramatic ways. The Leica CRF 1600-B features the newly developed ballistic function ABC™ (Advanced Ballistic Compensation), accounts for air pressure, temperature, and angle of inclination to offer holdover values displayed in one of three output modes: 1 - provides linear holdover value in inches (or centimeters) 2 - provides true horizontal distance equivalent to target in yards (or meters) 3 - provides holdover in ¼ M.O.A (or mil radian) The CRF 1600-B utilizes the same 12 pre-programmed ballistics curves as the CRF 1600, but holdover values will now be given from 100 yards to a full 880 yards (compared to only 500 yards on the CRF 1600).

The search feature is your friend! http://www.longrangehunting.com/forums/f18/leica-1600b-92539/ Happy reading!

Thanks! I read the post and found that it gives a ballistic curve to 875 compared to my 500 on my 1600. Also it has 1/4 MOA. I hope mine can be updated because I just bought it in Feb. Thanks for the link. I forgot about the search function.lightbulb