ACOG (5.56 Chevron BDC Reticle)

ACOG Opticsoptics are one of the most commonly used sights available to CJTF operatives, with many - including the unit's commander, Jansen - claiming that they are the best all all-around option for combat optics available to CJTF in the humble opinion of Jansen.optics. They offer an operator the ability to engage inat close, mediummedium, and long range shootingrange, thanks to its BDC (Bullet Drop Compensating)Compensating (BDC) and Range Findingranging reticle.

One

Operators thing toshould be awareaware, ofhowever, whenthat usingas thealmost all ACOG BDC reticle however, is that almost all ACOG's within our arsenalreticles are setupconfigured for standard 5.5656mm soM855A1/EPR theammunition, BDCthis marksfunctionality will not workbe foruseful you. if you use different ammunition types or sizes.

While the BulletBDC/ranging Drop/Range Lineslines on the ACOG are relatively self explanatoryself-explanatory, the range range-finding ability of the ACOG is often unknownnot tofully mostunderstood by people.

Each line and element toof the ACOG Chevron chevron/BDC is specifically sized and scaled for a reason.specifically. At 300 metersmetres, the base of the chevron willis roughly theequal same width as a humans shoulders. At 400m, 500m, 600m, 700m and 800m this remains true. Each corresponding line should be approximatelyto the width of aan humanadult shoulderhuman, to shouldermeasured at eachthe range,shoulders. thisMoving down the reticle, the same remains true for the lines at 400, 500, 600, 700, and 800 metres. This allows you to quickly getcompare the reticle to an enemy combatant at shoulder level and approximate the range of the target.

(ingame reticles may not match the illustration)

The below-pictured examples display the M150 RCO sights, demonstrating a rangereticle andwith pickthree yourdifferent holdshades onof ared targetwhich rapidlyget withoutdarker needingas toit takeproceeds down the timeBDC. to range the target some other way.

Additionally the optic used in the examples below (M150 RCO) has 3 different colors/shades on the reticle. It starts at bright red, then fades to a darker red and eventually to black; thisThis is a loose representation of the muzzle velocity decrease of M855A1standard 5.56mm M855A1/EPR ammunition over the markeddistances distances.marked. From 100mUp to 400m400 metres, M855A1 does not lose verymuch littlepower or speed. At 500-600 metres it begins to lose energy exponentially, and at 700-800 metres the bullet has lost much of its power and velocity,drops howeversignificantly at(which 500mcan tobe 600m it will begin to lose a large amount of its energy until around 600+ Meters where it will lose a majority of its remaining energy. This is also representedobserved by the factmuch thatlarger the two unmarked lines are only 100 meter's (700m and 800m) more than the previous lines however the gapsgap between theBDC linesmarks areat significantlythis largerrange). dueOther to5.56mm thetypes rapidshould ballisticexperience approximately similar drop thatas theM855A1, round will experience. This will roughly stay the same for most variations of 5.56x45 however there will bewith slight variations in drop and velocities.variations.