Bottom your rear sight and come up one click. But if all you have regular access to is a 100-yard range, you can do this. The bottom line is that longer distance you can use to set up your zeros the better. There is no one best way for setting up an AR-15 for across the course competition. If you do this, you should be able to go across the course with your rifle with ease.
Detachable a2 carry handle full#
Here you need to turn the front sight down, deeper into the tower, by three full revolutions then move the rear to 4 up from the bottom and fire the next sighter. The calculation here is that you want to get to 4 clicks up from the bottom of travel so 34 minus 4 equals 30 clicks divided by 2 because these are 1/2 moa sights.
You are almost at the top of the vertical travel limit of you rear. Fire a sighter shot or two, it'll be closer.Īnother example, say you had a 1/2x1/2 rear instead with the same 34 clicks up at 200 yards zero. Then move the rear down to 6 clicks up from the bottom. So you need to turn the front sight so it is shorter, deeper into the hole, by 1 and 1/2 revolutions. That's 34 clicks minus 6 clicks pre-set up or 28 clicks divided by 4 because its a 1/4 minute sight. Do a little math in our head or on a sheet of paper.įor example, let's say you have a 1/4x1/4 rear sighs and a previous zero with your rear sight at say 34 clicks up from the bottom at say 200 yards, it means your system is off by 7 moa. Remember that bullseye is good 6 moa in diameter. Do save ammunition by making changes to your front sight boldly. Now zero your rifle for elevation at 200 yards coming as close as you can by only changing the front sight post. They're pricier than the basic model but the added travel gives you the option of using tapered front posts. White Oak Armament makes a pined rear sight version with a deeper clearance cut in the elevation stud that delivers around 33 to 34 MOA of total vertical travel. Note: It is possible to almost double the travel range of the carry handle rear. Closer to 72 clicks and it is a 1/4x1/4 rear. If closer to 36, you have a 1/2x1/2 rear. 77 grain match ammunition behavesīottom out your rear sight and count the number of clicks to get to the top of the traverse range. You have it set up so you can reach 600 yards from a 200 yards starting point Or total vertical travel not a lot of room to waste. The rear sight assemble of a detachable carry handle only had 18 moa This is not at all like the fixed carry handle M-16A2 pattern rifles that give much more vertical range of movement. Both still only give you 18 moa of total elevation. This is around 36 clicks of movement range in a 1/2x1/2 moa rear sight and around 72 clicks of movement in a 1/4x1/4 moa rear sight. The reason is because the rear sight system only has around 18 minutes of angle (moa) of vertical travel from the bottom to top of its range. Step 1 - Determine if you have a 1/2x1/2 or 1/4x1/4 rear sightįor service rifle competition using an AR-15 equipped with a detachable carry handle rear sight, setting the gun up properly is critical. Watch this video to get an overview of setting up the sight for a 200 yard zero. Standardization has many advantages for training and procurement for military systems.ħ7 gr ammo has the following ballistic drop characteristics when zeroed at 200 yards, the typical zero distance for a highpower rifle competition guns. Interestingly, this also approximates the ballistic path of US M118-LR 7.62x51mm sniper ammunition.
Detachable a2 carry handle mod#
military's Mk 262 Mod 0/1 ammunition used in designated marksman rifles. Common competitions loads tend to approximate the ballistics of the U.S. Sierra Match King, 77 gr Nosler Custom Competition. The most common of these is ammunition based on 77 grain boat tail hollow point bullets, the most common of which are the 77 gr. Marksman, sharpshooter and early expert class competitors typically shoot this course of fire with the same ammunition for all stages. The full distance course of fire consists an offhand and rapid sitting stage both at 200 yards, a rapid prone stage at 300 yards and a slow prone stage at 600 yards. Across the course highpower rifle competition is a challenging sport requiring consistency and precision.
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