New Posts New Posts RSS Feed - Mil-dots
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Check GunBroker.com for SWFA's No Reserve and No Minimum bid firearm auctions.

Mil-dots

 Post Reply Post Reply   Topic Search Topic Search  Topic Options Topic Options
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/05/2011 at 22:54
3_tens View Drop Down
Optics Jedi Knight
Optics Jedi Knight
Avatar

Joined: January/08/2007
Location: Oklahoma
Status: Offline
Points: 7174
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?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/06/2011 at 08:10
Kickboxer View Drop Down
MODERATOR
MODERATOR
Avatar
Moderator

Joined: February/13/2008
Status: Offline
Points: 18328
Marine Corps FMFM 1-3b or Army FM 23-10...
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/06/2011 at 15:18
Mike McDonald View Drop Down
Optics Journeyman
Optics Journeyman


Joined: September/01/2004
Status: Offline
Points: 734
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.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/06/2011 at 15:19
jonoMT View Drop Down
Optics Master Extraordinaire
Optics Master Extraordinaire
Avatar

Joined: November/13/2008
Location: Montana
Status: Offline
Points: 4612
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.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/06/2011 at 17:56
3_tens View Drop Down
Optics Jedi Knight
Optics Jedi Knight
Avatar

Joined: January/08/2007
Location: Oklahoma
Status: Offline
Points: 7174
Thanks Dan. that was easy to find. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/07/2011 at 07:48
Dale Clifford View Drop Down
Optics Jedi Knight
Optics Jedi Knight


Joined: July/04/2004
Location: United States
Status: Offline
Points: 5087
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.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/07/2011 at 07:50
Dale Clifford View Drop Down
Optics Jedi Knight
Optics Jedi Knight


Joined: July/04/2004
Location: United States
Status: Offline
Points: 5087
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
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/07/2011 at 08:36
8shots View Drop Down
Optics Jedi Knight
Optics Jedi Knight
Avatar
Lord Of The Flies

Joined: March/14/2007
Location: South Africa
Status: Offline
Points: 5751
Originally posted by Dale Clifford 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.
 
I think using windage on a fast moving target like deer etc could be tricky using the windage reticule. One's brain have to compute an extra input being which reticule intersection to use and then how to keep that one on the animal.
 
Shooting moving targets is more of and instictive issue. Pick up, lead , fire, follow through. For that  using the normal reticule and then leading in front may be the least complicated. The shooter should rather concentrate on the moving target and not on the reticule.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/07/2011 at 09:39
Dale Clifford View Drop Down
Optics Jedi Knight
Optics Jedi Knight


Joined: July/04/2004
Location: United States
Status: Offline
Points: 5087
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
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/07/2011 at 23:45
8shots View Drop Down
Optics Jedi Knight
Optics Jedi Knight
Avatar
Lord Of The Flies

Joined: March/14/2007
Location: South Africa
Status: Offline
Points: 5751
Dale, thanks for the explanation.
 
Tactical matches would be a bit different to hunting. I imagine in tactical matches the target moves in a straight line and at a constant speed.
In hunting the target constantly changes direction and speed as it moves over and around objects or bush.
 
So in the tactical matches it is easier to calculate the lead and use the windage reticule.


Edited by 8shots - February/07/2011 at 23:47
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/08/2011 at 09:14
Dale Clifford View Drop Down
Optics Jedi Knight
Optics Jedi Knight


Joined: July/04/2004
Location: United States
Status: Offline
Points: 5087
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.
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Similar Threads: "Mil-dots"
Subject Author Forum Replies Last Post
need help with mil dots on 10x44 viper stifun Rifle Scopes 1
Older SS with 0.18 mil dots Paleo Shooter Tactical Scopes 4
Mil-quad vs. Mil-dot onfinal Rifle Scopes 4
M8 With PA TT and Mildots?! Murphy.177 Rifle Scopes 4 12/4/2006 9:40:59 PM
Mildots treemanc Tactical Scopes 13
mil dots info cmc1 Tactical Scopes 2 3/18/2007 10:18:13 PM
Variable Mil-Dots on a budget.... taylorsf Tactical Scopes 12 3/15/2006 6:16:57 PM
Why mil dots on an AO scope? mickey Rifle Scopes 3
Are all Mil dots the same? shooter4 Rifle Scopes 5
Super Sniper Mil Dots Graysteel Tactical Scopes 8


This page was generated in 0.469 seconds.