Mil-dots

I know that the mil dot master gives information on ranging. Where would I go for information on how to use mil-dots for caculating leads on moving targets, at different ranges and speeds?

Marine Corps FMFM 1-3b or Army FM 23-10...

it's not complicated.

How fast is your target moving in feet per second/by how fast your bullet reaches the target distance.

Knowing the velocity of your rounds you can make a cheat sheet in minutes.

You can also get an idea of what leads are like under different conditions using an online ballistics calculator like JBM. You'll get the lead in both inches and mils.

Thanks Dan. that was easy to find. 

a more difficult problem is making it work. Past 300 yds it gets really hard. If your going to lead using the windage on the reticle -- this is where ffp scopes clearly win. Almost always you will need to dial the mag back to get fov for the mover which in ffp retains the relationship of the holdoff. JBM gives a good starting place. From there estimate the relationship in holding the mil marker one thickness in front of and in back off the mover.

should also add that bipods make a lot of difference, usually harris don't work well, but you can improve them by using a frisbee under the legs, flipped over. bipods such as sako and atlas work well

Dale Clifford wrote: a more difficult problem is making it work. Past 300 yds it gets really hard. If your going to lead using the windage on the reticle -- this is where ffp scopes clearly win. Almost always you will need to dial the mag back to get fov for the mover which in ffp retains the relationship of the holdoff. JBM gives a good starting place. From there estimate the relationship in holding the mil marker one thickness in front of and in back off the mover.

Usually in a tactical match sometimes a 3 gun there will be a mover, from 100yd to 300 yd. As good luck a mover can be planned out just like wind drift, so a 5 mph mover is about equal to a 5 mps wind at 90 deg. around 10 mph the difficulty goes way up. Movers are shot just like skeet and movers in steel hand gun. Its almost impossible to calculate a lead and move the gun smoothly along the flight or mover path in any of the shooting sports and get consistent results. A technique should be developed that works well with all the guns. The international skeet mount works very well with movers, and with a little modification works well with handguns. The front sight-- shotgun,(movers in 3 gun or skeet) and handgun or the holdoff marker in the scope are a "timing" point that if the swing is correct, as the marker goes thru the target the trigger press is completed will impart a small angular velocity to the bullet or the shot charge. The technique is modified a bit for shots past 100 yds. since its a precision shot, in that the swing is not really there, shooting off a bipod or fixed position in contrast to the above which are usually standing. A really hard course of fire will show a mover at 300 left to right , next shot at 1k, then back to a 300 or so mover right to left

Dale, thanks for the explanation.

Edited by 8shots - February/07/2011 at 23:47

yes you are correct, but the important part -- it lets you waste a lot primers, in finding the limitations of this type of shot, or when you can go for it. It wasn't part of the op question so I didn't get into it much, but the main use of shooting movers is handgun, ARs and shotguns, where the shots are 5-100 yds. all speeds and angles. Around old cars, buildings hostages etc. I would hesitate at shooting a moving elk at 300 elks from prone, but would have no hestitation shooting a moving elk up to 50 yds with a 44 mag handgun.