I think that’s how you’re supposed to on some shorter distance shots because (like he said) you have to aim above the normal aiming spot in shorter distances (like 50 meters)
Right so this is like whatever you were taught by whoever...Our unit always did shoulders.I actually zero'd in lower because I was using the thing like it was call of duty...the FM wants shoulders. But again everyone is different lol
It’s funny to me how different others are taught on the same optic. The tip of the chevron is 100yds, the crotch of the chevron 200yds, and the tip of the post 300 and so on. Pretty neat hearing different ways others use the RCO
But at the same time 300 and 25 yards are the same aiming point due to trajectory. If you aim below the target you will miss unless you scope is out of zero. Also in the manual for the acog it explains the tip is 100 crotch is 2 and the tip of the stadia is 3
@@Millie.1965 if its zero'd properly it should hit directly where the post is at 25 meters, ive used the scope for 3 years now in the marines and ive never had an issue doming our paper targets at the 25.
@@roadtokali5951 Assuming standard height-over-bore, the POA/POI are the same for 25m and 300m. So at 25m, you should be hitting down where the 300m line is on the reticle.
Marines zero their rifles to 300m so that anything from 25 to 300 is within 8 inches of the optical centerline point of impact. Not sure how they zero the acog. It should theoretically be zeroed for 100 with 855 so that The bdc is correct but I don’t know how they actually do it. I use a 50y zero with my acog because my barrel is shorter and I have heavier grain ammunition. It allows me to get hits anywhere within the chevron from 25 to 300.
Well. 99% of all troops are using and always use the same ammo... standards... the range lines are specifically designed For 5.56 standard ammo.. and the horizontal lines are for elevation and estimating ranges... dunno if they make an acog for other ammo. But. If you use a different ammo or different weapon / barrel length. You'd lose most of the functionality of the scope
@@joelrunyan1608 yes, there are a plethora of acogs tuned to certain barrel lengths and ammo types. It's not a catch all. That's why for your generic acog you zero it and then confirm your actual distances on your subtensions to see your true impacts distances. And no, you don't lose functionality using a different weapons system or ammo. You just zero it and confirm impact distances.
@@cloneorder6641 Isn’t it the 1:9 twist or 1:12 that handles the 55gr/M193 & the 62gr/M855 works well in the 1:7? Been awhile since we we’ve been down range. Hell all that was around back then was the M193 55gr, for the 5.56. Things obviously have been improved on if that’s a good way to describe it!
Actually not always true. If your sighted in at 300yrds plus. Your scope will be accurate or pretty darn close at 2 distances. Your scope is a straight line while bullet trajectory is an arc. Depending on caliber loads etc. That straight line will intersect that arc twice. Excluding windage. Take a look at real ballistic charts it explains it. Bottom line on something like a 30-06 with a 165gr boat tail nosler partition If your dead on at 300 yds. You put any decent scope, even without compensation marks. Center mass, something is going down. Your total variable is less than 3 inches depending on rifle. He's got the basic idea, might even be totally correct for video games. But real life quite a bit different.
Na, it's not really like that. The further you go the larger your incline has to be, about up to 100 meters the RCO (acog) is accurate to the arrow, any closer then you *might* have to decline a bit. It only gets bad once the'yre in the 20-10 meter range, which in that case you would have to try pretty hard to miss
Bullets travel in an ark not a straight line up. Any closer then 100m and you start aiming up again. 50m and 200m and 25m and 300m are the same aim point
Comment Karen’s: AAAAACTUALYYYYYYY, your joking comment is INCORRECT…SIR. How dare you! The nerve! That’s perpost-wait what? The comment was supposed to be funny and I should laugh more? I should relax and not be so unnecessarily literal from wake to sleep? 😒well….whatever….s…stop making jokes about guns! 😒 yeah that’ll teach em not to offend any of my countless sensibilities any more! Hm 😒 The rest of us: Like really guys?…Wtf is up with people? RELAX PEOPLE.
Also the width of the notches for the range marks doubles as makeshift rangefinders, as they are the average size of a soldier's width shoulder to shoulder from said distance. So if a combatant is far away and you dont know the range, you can check each of the notches and if it just covers the combatant, say 600 meters, that's the correct distance.
You are correct BUT you also forgot about the chevron itself. The top of the chevron is for 100m targets, the top of the cutout is 200m. When zeroing the scope on an M4 @25m, use the top of the POST as your point of aim for the center of the target. The IMPACT of the rounds @25m should be about 1.5 cm BELOW the point of aim. This is to account for the sight over bore difference.
Which is exactly where it's supposed to be. Quick pro tip, never use the 25m uncorrected zero on your irons or optics, unless you "want to aim below the target."
@@devildog1989 the Acog tip of chevron is 100m, the interior cut right below the tip is the 200m, tip of the red is the 300. If you zero it any other way the BDC is useless
@@charlesmiller3778 however, there is the Marine way and that coincides with the Chevron. Zero at 36yrds using the 300m/bottom of the Chevron. Confirm at distance obviously but otherwise, the tip will be 100, the tip of the pussy/inside of the Chevron if you will, will coincide with 200, and the bottom of the Chevron will be 300. Everything else will line up where it's supposed to be
I worked for Trijicon as a field technician and traveled all over the US and sometimes to other countries working on their equipment and also work on NODS, lasers and thermal imaging. I ended up leaving though after two years for a better opportunity with Elbit Systems of America. This is the current name, prior to that it had three other names. The original was ITT Night Vision. Elbit is a Israeli owned company in Haifa.
The acog is a great scope Especially if you were somewhere like korengal But they got a little annoying with close engagement distances in villages I was a huge fan of the elcan when that came out finally
I love the ACOG and ACSS aiming reticle. It is genius how to range a target you move though the drops until you get shoulder width. It makes it simple to use and more robust in a combat situation. Also if you are going by the tip of the chevron, that is supposed to be a 100m zero. At least how I was taught.
I have to say the ACOG has been my favourite. In the Australian army we had them mounted on the F-88SA2 Austeyr. We also had a Trijicon RMR on top. Useful for very close distances.
"All the way up in the air!!!!" Dude, have you ever actually fired a rifle with an optic on it? A few millimeters movement can change the bullet trajectory by several feet or not at all depending on the range. It's not a damn grenade launcher.
Definitely don't think any real firearm experience, at least rifles at a distance. Got the basic concept though, which is a start. Forget these are video games. This isn't new tech, been around for over a hundred years. Ramp sights, ladder sights were predecessors. Some scopes used to come fixed elevation and windage reference marks and adjustments. Based off moa at 1/4 inch at a 100 yds. Apparently they've made smart scopes now. All I know is you're better off understanding your gun, ammunition ,conditions and capabilities. Make sure it's sighted in and know your target before you squeeze the trigger. Shooting in video games or targets is not the same as hunting or war. There's no reset.
@@bcallahan3806 not sure why you're responding to me... Not sure if im reading your response clearly either. 1 MOA is ~1 inch at 100 yards, not 1/4". If you're talking about adjusting the turrets to zero a rifle, 1 click = 1/4 MOA is common but not universal. And the reticle on this optic is not an MOA reticle. It's more like a BDC that shows holdover based on a specific cartridge with a specific weight bullet.
@@92vanguard your correct, I mispoke. What was 4 moa clicks was common to equal 1 inch at a 100yds. Not stanard. And yes there's a ton of variables. Was trying to agree with you. In your initial response to the video. Also as I said older scopes really weren't accurrate bullet drop compensators or windage adjustments. They were just fixed reference points based on a certain distance. I've never the opportunity to use the new scopes but can tell you have have shot plenty of deer and other moving targets 200 to 400+yrd range. Did it by looking up ballistics, getting the right gun for where I'm headed. And being concious, quick and accurate. Muzzle loaders,22, shotguns, pellet guns to 30-30 to 300 win Mag. In 6 decades with the exception of cheap pellet guns and rat hunting. I've missed less than I've fingers. All because I was taught early on. By some of the best. Guys could rattle off a pump so fast it sounded like a semi, weapons specialist in Vietnam, guys shoot 5 rounds at 300 meters. One whole less than a dime. Me on paper couldn't come close. But in the field. Took me ten years before the target shooter ever shot a living thing. There's a difference. Tell me how many points on a deer. But didn't shoot. I did it because of food. Don't even own a gun anymore. Not allowed to in the lease. No disrespect for you again. Appreciate the corrections on moa. Adjustable BDC just not affordable. Probably should go again. What I used to hunt, track for over runs my doorstep. We knew it was coming. We no longer hunt shoot them for food. We hit them with volvos, smart cars and EVs. That brings in coyotes, rats that kills off red and grey fox, birds of prey, 0
The tip of the chevron is zeroed for 100 meters you dont have to aim below your target at 50. You will get good enough hits aiming center mass at 50 meters to kill a man
Correction, your bullet trajectory is pretty much the same for 50M and 300M. That’s why we do a 25M zero range that represents a 300M. The projectile starts low, raises up, then falls back down to 300M. The lateral point of unison is at 25 and 300. 50 isn’t that much further. You still aim center mass.
As well as when he said to aim below center mass at close distances to account for zero. If hes zerod to 50m or 100m like using the hashes would suggest then theres no need to aim low at close distances. Theres no way this guys ever shot a rifle
@@littletimmy9686 I commented the same thing. A 36/300 yard zero is used in most cases (sometimes 25 yard zero) and center mass shots out to 300 yards will only deviate a few inches. I hate when people make tiktoks like this because it makes people believe and spread false information
@@Hawk_Sparrow those are mil lines, not used for wind. With wind you deviate based on inches. Really unless you’re doing the calculations it’s more of a Kentucky wind age thing where wind is blowing from the left so you shoot a little to the right but anything 300m in you won’t have to make a wind call.
Windage literally does not factor in until a target is like 1000m away. Maybe if it’s a windy day windage becomes a factor at 800-900m. Bullets are fast.
The ACOG uses an etched glass and prisms of glass orientated to magnify the reticle and sight picture, as opposed to lens style magnification common among most conventional optics
For those gamer kids, the red line a top the scope is tritium which uses I believe solar to light up the chevron. Reusable power source. Also don’t break it.
Tip of Chevron= 100 meters Bottom tip of Chevron= 200 meters Tip of post is 300. At 25 meters you are also aiming at the 300 assuming your zero is at 100 meters. Look up trijicon RCO acog refers to multiple different optics used in several different military units
The acog is, thus far, the finest combat optic we've yet devised. The perfect mix of magnification (super helpful for peaking at things to identify them), ballistic calculation, and simplicity with the tritium. I love it.
Key thing to consider about ACOG’s is that the tip of the chevron is not the aiming point like you see in video games. And the eye relief on them is pretty bad so if you have to get your eye up really close to the scope to see through it well.
Man ACOGs were so great, that shoot atleast in my unit only the officers and NCOS could have them, us lower enlisted just had to make due with crappy red dot sights. Which were better than nothing, ACOGs are no joke really on point.
That is called a bullet drop compensator (BDC), but no, the way the bullet travel path works is the second the bullet comes out of the barrel the forces of gravity work on it, so on an acog with 5.56, the 300m is roughly equivalent to the 25m so to get a rough zero you aim with the tip of the red line or the ‘300’ when shooting @25. Also m4s, M16s, and M27s only have an effective range on a point target of 500m. Anything after that is an area target of around 800m, that is if you can even see that far. Most combat engagements are 300 in. The lines on the outside are Mil lines and used to find distances using known measurements, they are broken into blocks of 5 mils each. End of the day though anything 100m in, use the chevron because POA is going to be roughly POI. Really close in like clearing a building because it’s a 4x optic, just look over the optic.
The botton of the chevron/tip of the BDC stadia is to be zeroed at 25 yards. Ballistically, a 25 yard zero will intercept a 5.56 trajectory (usually assuming M193 loads out of a 14.5, or 20in barrel, which does influence velocity, so it depends on what trijicon contracted model we're talking about) at both 25 yards on the way up, and 300 yards on the way down. The tip of the chevron is to be used inbetween 25 and 300 yards. It roughly represents the top of the trajectory's ballistic arc at roughly 100 yards. So. For anywhere between 25 yards and 300 yards, use the tip of the chevron, and the bullet will impact within a reasonable error. Basically it's just a BDC reticle, and you dont really have to aim the gun "all the way" up or down, the aiming point between 300 yards and 800 yards is almost imperceptible with regards to how much youre actually moving the gun.
Tip of the chevron is 100m, these sights are zero’d in at 25 yards using the tip of the post (red post under chevron) with the bullet trajectory being the same at 25m and 300m out of carbine m4 and m4a4, and the iars, it ensures proper zero and sets a standard for unknown distance.
In the M150 RCO, the upper apex of the chevron (the tip on top) should be zeroed at 100m. Lower apex (the tip of the bottom inside edge of the chevron) will be at 200m. The top point of the illuminated vertical line is 300m. The lowest horizontal edges of the chevron are on the same horizontal plane as that point. The rest is self explanatory. If you do not zero the top apex of the ACOG M150 reticle to 100m, the rest of the reticles will be off. That’s how I was taught. The shoulder thing is true, but teaching that is discouraged because that takes your attention away from your true point of aim. Just use the top point of the the illuminated vertical line for targets at 300m.
I use a Trijicon ACOG on my AR that I built and it’s really a minor adjustment up or down depending on the distance of the target. Not aiming way up for distance or way down for close range. Quite an exaggeration on the presenters part. As far as what it looks like when you peer through the scope, you can find images of that online pretty easily just by searching it on google. I really do love to use the scope though, very clear glass and very much on point as far as accuracy.
The RCO’s chevron uses tridium to illuminate, I’ve been using the SCO for about 8 months now and at first I wasn’t impressed. Initially due to its 1 and 1/5 weight increase but it’s actually extremely versatile
Top of Chevron is 100m Bottom of Chevron is 200m Post above the hashes is 300m First has 400 2nd hash 500 3rd hash 600 4th hash 700 Bottom of reticle 800. Zero at 25m with post(300m) then correct at 100m and then furthermore at 300m.
You explain this with the understanding of a non shooter. Well done. Now, please explain how suppressors slow down bullets and decrease range and energy.
Also worth noting that if you hold on that for different calibers, it might not land where you think. BDCs are calibrated for specific rounds. But you can still use it to range.
Advanced combat optic gunsight. The rangefinder is literally the width of the chevron. The logic is that the chevrons are supposed to be referenced to the 19” avg shoulder of a guy. It’s a cool rangefinder that only works for people who aim guns at other peope
You can purchase models constructed with different targeting reticles. I selected mine with a traditional looking primary crosshair (reticle) and GREEN LED. When the LED is turned on the center portion of the primary reticle "+" and the 300, 400 holdover reticles are illuminated. On this model the 700yd-1000yd reticles become a "+" sign with gaps "- -" in the center so you are not losing the target behind a line. Trijicon provides MOA measurements for all markings inside the optic, including the width of the lines themselves and the exact MOA between them. It is the clearest glass that I have ever looked through. The lines are laser sharp. ACOG is worth every penny.
We were taught 100 tip of chevron, 200 at the crease of the chevron, tip of post for the 300. Tip of post for 50 meters, 4 line at 25m. USMC PMI’s teach this way, well the ones I had. Shot 48/50 3/3 this new ARQ range
Dude, the difference between the Chevron and the 800m mark would be nearly unnoticeable at the shooter. Those marks in the scope only occured within a very microscopic amount but when you extrapolate out further and further to the target the difference between where you aim and where you impact becomes greater. So while you are aiming up, anyone watching the shooter would not be able to tell the difference whether they are shooting up or down.
The tip of the chevron is 100m and the crotch of the chevron is 200m the reason you use the tip of the post (300m) for 25-50m shots is because the bullet is still in its upward trajectory towards the target
The top tip of the bdc is the 300m aim point the highest point of the chevron following the bottom edge is your 200m aim point and the top tip of the chevron is your 100m aim point. For the 50 meter target you use the 300m aim point and place it low (just above the dirt) and center from left to right.
Its called a bullet drop compensator. They are made this way for the specific weapon. They are a quick reference for the distance the point of impact will strike.
If your target is 50 ms away, and you have a 300m zero. Then yes aiming through the acog you would have to "hold" a lower point of aim. You in general won't do this though bc at 50 meters you should be able to "reflex fire" to hit your target. That's why you need to shoulder your rifle in line with your "natural point of aim".
Natural point of aim and reflex fire, Jesus. Sometimes I wonder if the RCOs that write these instructions actually think that's the best practice or the easiest to teach a large group.
Theres more than one reticle for the ACOG. Theres several and many of them look very different and some similar often calibrated for different calibers or even specific rounds but they typically still work generally speaking.
Worked as a block NCO at the stone bay rifle range near camp lejeune for a while. Your pretty much on point here, but when your real close (25 meters etc) you actually aim with the tip of the post not the chevron due to how the round leaves the barrel.
TBH. You see that the ACOG-Scope in his first picture has a reflex-sight. So if und have a target close to 50 meters u use the reflex sight. It's basically a "red dot scope".
More an explanation of MIL-Dots than an ACOG. Those markings are used on almost anything sort of gun or cannon optic. The difference between an ACOG and a regular rifle scope is the range of engagement. Most ACOGS top out at 4x zoom, while a typical rifle scope can potentially go much higher. ACOGS also have a much wider field of view, making target acquisition much easier and faster.
Don't want to be the actually guy but when ur up close you still aim a bit up, but for a different reason. It's about how the optic is sighted. When you fire, your bullet travels in an arc. You zero your sights to hit as they are coming down on that arc. So when you are close up, you have to raise your sight a bit to compensate. We usually use the 300 line at anything closer than 30 meters, but shooting up close can be tricky. You never aim above the 100.
