What are MILs? How to Use Milliradians in Long-Range Shooting | Ryan Cleckner

This guide, presented by former special operations sniper Ryan Cleckner, breaks down the concept of Milliradians (MILs) for long-range shooting. It explains MILs as a ratio (1 MIL = 1/1000th of distance), details how scope adjustments (typically 0.1 MIL per click) translate to precise centimeter adjustments at specific ranges, and demonstrates shot correction calculations. The importance of understanding bullet trajectory, DOPE, and establishing a 100-meter zero is also covered, emphasizing practical application for accuracy.

Quick Summary

Milliradians (MILs) are angular measurements used in long-range shooting, where 1 MIL equals 1/1000th of a radian. Practically, 1 MIL subtends 1 meter at 1000 meters. Most scopes adjust in 0.1 MIL increments, equating to 1cm impact change at 100 meters, allowing for precise corrections based on bullet drop and windage.

Chapters

  1. 00:00Introduction to Milliradians (MILs)
  2. 00:22Defining Milliradian: Etymology and Measurement
  3. 01:29MILs as a Distance Ratio
  4. 03:08Scope Adjustments: 0.1 MIL Clicks
  5. 04:51Calculating Shot Corrections with MILs
  6. 07:35Understanding DOPE and Bullet Trajectory
  7. 08:53The Importance of a 100-Meter Zero

Frequently Asked Questions

What is a Milliradian (MIL) in shooting?

A Milliradian (MIL) is an angular measurement where 1 MIL equals 1/1000th of a radian. Practically, it means 1 MIL subtends 1 meter at 1000 meters. Most rifle scopes adjust in 0.1 MIL increments, allowing precise adjustments for bullet drop and windage.

How do scope clicks relate to MILs and distance?

Rifle scopes typically adjust in 0.1 MIL increments. This means one click moves your point of impact by 1 centimeter at 100 meters. At 500 meters, 0.1 MIL would equate to a 5cm adjustment, making MIL-based systems highly scalable for long-range shooting.

Why is a 100-meter zero recommended for long-range shooting?

A 100-meter zero is often preferred because it accounts for the height of the scope above the rifle's bore. This setup ensures that even for targets closer than 100 meters, you'll typically need to adjust upwards, simplifying holdover calculations for longer distances.

How do you calculate MIL adjustments for a missed shot?

To calculate MIL adjustments, first determine the value of 0.1 MIL at your target range (e.g., at 600m, 0.1 MIL ≈ 6cm). Then, divide your miss distance by this value. For example, a 12cm miss at 600m requires a 0.2 MIL adjustment (12cm / 6cm = 2).

More Training & Techniques Videos You Might Like

More from NSSF—The Firearm Industry Trade Association

View all →