Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
BigHit, Sifat, TJWatkins, Jlivi1224, 65chevy
60473 Registered Users
Top Posters
dogcatcher 77468
stxranchman 52092
RWH24 44568
rifleman 43787
BOBO the Clown 41118
BMD 40539
Big Orn 37484
txshntr 33685
bill oxner 32659
sig226fan (Rguns.com) 30571
facebook
Forum Stats
60473 Members
45 Forums
476100 Topics
6245546 Posts

Max Online: 16728 @ 03/25/12 08:51 AM
Topic Options
#5904130 - 08/30/15 03:38 PM learning mrad
epolanco Offline
Woodsman

Registered: 09/09/09
Posts: 166
Loc: south texas, RGV
Been reading up on learning the mrad system, but dont really get the hang of it just yet. Does anyone recommend something i can read to get the hang of it? Thanks
_________________________
"I'm a modern day John Wayne with my daddy's last name born 50 years too late"

Top
#5906336 - 08/31/15 06:50 PM Re: learning mrad [Re: epolanco]
wburke2010 Online   content
Extreme Tracker

Registered: 06/26/13
Posts: 4687
Loc: Nevada, TX
What are you not understanding about it?

Walter

Top
#5906630 - 08/31/15 08:42 PM Re: learning mrad [Re: epolanco]
epolanco Offline
Woodsman

Registered: 09/09/09
Posts: 166
Loc: south texas, RGV
Like if my projectile drops 6" at lets say 300 yrds how do i convert to mils
_________________________
"I'm a modern day John Wayne with my daddy's last name born 50 years too late"

Top
#5906776 - 08/31/15 09:42 PM Re: learning mrad [Re: epolanco]
wburke2010 Online   content
Extreme Tracker

Registered: 06/26/13
Posts: 4687
Loc: Nevada, TX
What scope do you have? And what reticle does it have?

That is your problem of why you can not learn it. Mils and inches are two complete different things. If I shoot at a target and I am low, I look in the scope and my reticle will show me I am 4 mils low so I adjust the scope four mils.

I am sure Jason can explain it better you might want to have a mod move this to the optic section.

Walter

Top
#5906853 - 08/31/15 10:20 PM Re: learning mrad [Re: epolanco]
BigPig Online   content
THF Trophy Hunter

Registered: 08/27/09
Posts: 9521
Loc: Forney, Tx
First think you need tondo is forget everything you know about inches, stop thinking in 1/4 in clicks and the such. 1 mil is 3.14 inches or pi(my phone doesn't have the symbol). As Walter said, you now measure and adjust your scope in mils. If you turn your turret 1 mil, then you are turning it 3.14 inches. If you have .1 mil increment then 1 click is .314 inches or 1/10 mil. I'm not a good teacher, get with Fireman JG, he can explain it better.
_________________________
Originally Posted By: bill oxner
Ever spit it out rather than swallow it?

Originally Posted By: pegasaurus
Enjoy it while you can. One day you might be complaining about NOT getting random pop-ups in the morning. grin

Top
#5917808 - 09/08/15 06:45 AM Re: learning mrad [Re: epolanco]
Slow Drifter Offline


Registered: 04/09/09
Posts: 4253
Loc: Central Texas
Here's a good video on the subject from the National Shooting Sports Foundation.

https://www.youtube.com/watch?v=S5AGsHSIsVo
_________________________
"I have no idea what WW-III will be fought with, but WW-IV will be fought with sticks and stones."

A. Einstein


Top
#5918904 - 09/08/15 06:29 PM Re: learning mrad [Re: BigPig]
68A Offline
Veteran Tracker

Registered: 09/29/12
Posts: 2297
Loc: North Texas
Originally Posted By: BigPig
First think you need tondo is forget everything you know about inches, stop thinking in 1/4 in clicks and the such. 1 mil is 3.14 inches or pi(my phone doesn't have the symbol). As Walter said, you now measure and adjust your scope in mils. If you turn your turret 1 mil, then you are turning it 3.14 inches. If you have .1 mil increment then 1 click is .314 inches or 1/10 mil. I'm not a good teacher, get with Fireman JG, he can explain it better.


1 mil is 3.6 in at 100. But not that it matters, think in mils not inches

Top
#5918909 - 09/08/15 06:31 PM Re: learning mrad [Re: epolanco]
68A Offline
Veteran Tracker

Registered: 09/29/12
Posts: 2297
Loc: North Texas
Don't be concerned with how many inches low you are. If equipped, use your reticle with mil markings to determine how far off your shot was and adjust accordingly.

Top
#5919221 - 09/08/15 09:13 PM Re: learning mrad [Re: epolanco]
FiremanJG Offline
THF Celebrity

Registered: 12/16/08
Posts: 17893
Loc: Wolfe City, TX
Why was I not notified? grin

Center of your reticle to the first dot, diamond, large hash is 1.0 Mil in each direction. Stop there.

1.0 Mil is 1 yard vertical at 1000 yards horizontal, 1" at 1000", 1 m at 1000 m. It is a trig function, so angular, not linear. If we sat a 55 gallon drum at 1000 yards it would measure 1.0 Mil tall in the reticle since it is a yard tall. Move the drum to 500 yards and it would be 2.0 Mils in the reticle, move it to 100 yards and it would be 10.0 Mils in the reticle. (I draw pictures on the board for students at my range, words only go so far)

So at 100 yards 1.0 Mil is 1.0 Mil, same as 1000 yards. It is a cone. At 100 yards it is 1/10 of a yard, 3.6", at 500 yards it is 1/2 a yard, 18". But you have to throw inches out the window. Weather at 100, 500, or 1000 yards you scope "sees" in Mils so you measure in Mils. You see a miss .5 Mil low, dial or hold .5 Mil higher than that last shot, plain and simple.

Where this gets way easier is in the ballistic calculator. Plug in your bullet's BC, MV, weight, and zero distance and tell it to give you trajectory in Mils. That is what it will do. Shoot the rifle at 100 yards. Say your first shot is .3 Mil high (as you can see in the reticle) and .5 Mil right. Dial the elevation down .3 Mil and the windage left .5 Mil. All things working perfectly including shooter and equipment, then the next shot should be a perfect center shot. Loosen the turret screws, rotate the turrets to "0" and tighten the turret screws. Now the rifle, scope and turrets are zeroed.

So lets say you're shooting a 6.5 Creedmoor with a 140 gr. A-max @2800 fps MV.

The calculator will give you trajectory in Mils.

200 yards up .4 (dial to .4 Mil)
300 yards up 1.0 (dial to the number 1 on the turret)
400 yards up 1.8 (dial 8/10's more elevation to 1.8)
500 yards up 2.6
600 yards up 3.6
700 yards up 4.7

If all the data is true going in it will give you good data out. jbmballistics.com is reliable and free.

Thos values can also be held for corrections. So the 300 yard shot (elevation turret still on "0") hold over to the first 1.0 Mil dot, hash, diamond, whatever is in the reticle. Hold the same values for the rest of the chart. The trick is holding elevation and wind simultaneouly. Dialing elevation and holding wind is the best method. You get to stay on the windage line and have a ruler to lined up through the center of the target.

Let me know if I can further help.
_________________________


800 Yard Steel Rifle Range
Long Range Shooting Instruction
Memberships and Classes Available


Top
#5923117 - 09/10/15 09:19 PM Re: learning mrad [Re: epolanco]
epolanco Offline
Woodsman

Registered: 09/09/09
Posts: 166
Loc: south texas, RGV
Thanks everyone for the help, Fireman i actually will be shooting a 6.5 creedmoor lol. I am planning on taking ur class as soon as work permits. Thanks again
_________________________
"I'm a modern day John Wayne with my daddy's last name born 50 years too late"

Top
#5937592 - 09/20/15 03:41 PM Re: learning mrad [Re: epolanco]
wburke2010 Online   content
Extreme Tracker

Registered: 06/26/13
Posts: 4687
Loc: Nevada, TX
Was waiting on him to show up fireman can explain it much better than I can.

Walter

Top



© 2004-2016 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide