Sodbuster,I am at 600 max as well for moose hunting. The abovementioned holdover reticles obviously work but I prever an uncluttered view and just dial in my duplex for the drop and wind. Wind is harder.
I also find it easier to hold under at close ranges, compared to holding over at longer distances out there. So,in this case all I need to remember is 13 clicks for 400, 14 more for 500 and 15 more for 600.
This 300 grainer goes 7 inches high at around 100 to 200 meters , no big deal to compensate for moose - I really donīt need to shoot that close anyway but it wouldnīt be a problem, even without touching a turret for those -12 clicks at 200.
This is one of my practise "ranges", easy to confirm the trajectory by any increments up to 500 meters. The added signs show 400 meters in these pics. No matter what reticle,this has to be done - and itīs fun plus you get some of physical exercise. 100 just doesnt work alone, all too many variables. Bipod on cartop,poacher stance. [img]images/icons/grin.gif[/img]
I must add thereīs nothing and nobody out there where Iīm shooting. Good luck for your choice.