36 yard zero at 10 yards
The most critical calculation is your second zero. This post is to congradulate Nick in post 24 for correctly answering the original discussion from the rude and always right post from paul ( post 10 ) haha. How adverse are the effects of using 308 or 6.5CM on this 36 yard zero? It is critical that a Marine fires tightly grouped shots directly on the point of aim when establishing a BZO at 36 yards because any error in shot placement at 36 yards will magnify as the bullet travels down range. I did maximize to 100% but squares seem small. Will this also work for the 62 grain ammo? The barrel of the M16 (and probably MOST rifles) is pointed at an upward angle, so yes the bullet WILL rise initially. Figuring out holdover on the fly (and without a dual-reticle optic) is a nonstarter in this case. With a 36 yard zero, you should have approximately a 5 inch spread from 25-300 yards. Easy peasy homes ! Yards : A yard (symbol: yd) is a basic unit of length which is commonly used in United States customary units, Imperial units and the former English units. Using this value, it is simple to calculate that the MPBR for a 180 grain Remington Core-Lokt .308 roundnose soft point cartridge in my trusty Remington 700 is 293 yards, with our second zero at 252 yards. A bullet NEVER rises once it leaves the muzzle of any firearm. Even though you feel as if the rifle is level, it in fact is not. I’ve got some 25 zeroing targets on my site at http://www.spuler.us/gunsandammo/?p=253 — both for M4 carbine, and M16 style rifles. Any suggestions? 36 yards zero is about 1.25" high at 100 yards 25 will get you to 325ish and 2+ " high at 100. That setting leaves me 2â³ high at 25 yds, 3â³high at 50 yds, back to 2â³ at 75 yds and zero at 100 yds. If your barrel was aligned perfectly horizontally, then yes, the bullet would drop immediately. Like a ball, it is this angle, not angular momentum, which causes it to rise. .hide-if-no-js { Find the manufacturers information on your favorite rifle load, google up a ballistics calculator, and in just a few minutes after plugging in your data you’ll have a good MPBR zero for your setup. While a 36/300 yard zero is great for open land, I find it to have a higher than wanted POI over POA in the 75-150 yard range for a CQB type gun. Frank Proctor uses a 50 Zero at 10 yards, check it out! The commenters are all correct, in their own frame of reference. Iâm using firefox and its slowly becoming the bane of my existence as Iâve got 3 different sizes so far. What does change is the trajectory of the individual bullet/cartridge. End of story. We reserve the right to edit as appropriate, delete profane, harassing, abusive and spam comments or posts, and block repeat offenders. Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Pinterest (Opens in new window). })(120000); I questioned the Basic Rifle Marksmanship instructor on this exact thing! Shopping with us is absolutely safe - you never have to worry about credit card safety when shopping here... Share your latest AR build or photos from the range with #RangeDayFriday for a chance to win a new firearm! The battlesight zero used by Marines when shooting the iron sight M16A2 is the 36/300 zero, meaning that the bullet will be on the sight line at 36 yards and again at 300 yards. A bullet fired from a horizontal barrel immediately drops to earth never rising above the bore axis. they have figured out a target you can zero on at 10 yards which will give you a 50/200 yard zero for your rifle at range. it's a great zero for red dots especially for the 200 and in range for what most people are going to be using it for for self defense etc. Based off of the size of the vital area of your target, you can compute the maximum rise and drop tolerable for your cartridge. Read the part about the Magnus effect. i am so satisfacted.my english is poor, sorry :). If you point a gun in the air and pull the trigger, does the bullet fall straight to the ground? When I âright clickâ there is no option to save to desktop. Mostly curious since, the only shooting range in my area is an indoor range, 21 yards max - so doing 10 yards wont be a problem compared to 50 yards. If you can’t comprehend that a bullet goes up, then down, when firing at a target at the same elevation as the shooter, you have missed more than just the finer points of long range shooting arts. I created a 25 yard adjusted zero target for the 36 yard zero based off of a specific set of specs. The majority of our clients use some type of red dot holographic sight whether it be EoTech, Aimpoint, Trijicon, or Vortex optics. All of these sights sit approximately 2.5 inches above the bore of an AR-15 rifle. Most of our shooters are also using basic 5.56/.223 55 grain FMJ for their range ammo, which is also what they zero their rifle with. I figured somewhere there would be a 36 yard zero target for the 25 yard line but there was nothing. They have 25, 50, and 100yds but no 36. So I put the time in, gathered as much info as I could as far as what shooters are using when it comes to optics and ammo, and I calculated where the bullet would impact at the 25 yard line with a 36 yard zero and made a target out of it. Put a rifle in a clamp with the barrel exactly two feet high and exactly perpendicular (level) to the ground. How would this work if you were using a bullet heaver than a 55gr? By far my favorite zero for 5.56. So, depending on the target’s location, it can cross the line of sight twice. However, I just plugged in the data through one of my ballistic apps, iSnipe. 180 grain Remington Core-Lokt .308 roundnose soft point cartridge, At the Range: Weatherby Vanguard Series 2 Deluxe - The Shooter's Log, At the Range: Weatherby Vanguard Series 2 Deluxe, http://m14forum.com/m16-ar15/29561-adjusting-your-iron-sights.html, Exterior Ballistics and the Defensive Shooter « Ordnancecorner’s Weblog, http://en.wikipedia.org/wiki/External_ballistics. Not sure if my print out is the correct scale. With our rifle zeroed for these distances, we can be assured that a perfectly centered aim on a deer at any distance between 0 and nearly 300 yards will result in a hit in the vital area of our target. 7 It is evident he has never been in any of the Combat Arms MOSs (if he was even in the military). Yes, gravity does have an immediate effect, which is not (as in the example of the baseball) to make it fall as soon as it leave the barrel, but to *decrease* its upward velocity. This gives the Marine a good aiming point for a man sized target at any distance between 0 and just over 300 yards. My own experience is that at a 25 yard zero, it drops about an inch at 50 but 9 inches at 100 yards. When you start getting out to 100 yards, the tiny differences that you cannot see at 10 yards, especially if the bullets are nearly going into the same hole (so you think you are doing well), are compounded tremendously. If you are planning on shooting the majority of time within 125 yards I dont see a benefit of a 36/300 zero and actually see some decent minuses for it. The 36 Yard Zero Feb 23, 2018; Filed under 36 yd Zero, carbine target, rifle zero, sighting in target, Target, Vigilance Elite 36 yard zero, Vigilance Elite target, zero target; Discussion 161 comments In fact, if you have a good bench rest and a gridded target you can, with a little math, perfectly achieve a MPBR zero on your rifle at any range. Thank you for your service! The MPBR is the maximum range at which the bullet rise and drop stays within the vital area of your target. If that were always the case, then it would be impossible to hit a target at the same elevation. From the muzzle to approximately 42 yards, the 36 yard zero has a slight advantage over the 50 yard zero. The 25 yard zero (red line) and 30 yard zero (green line) have very little (if any) rise over the point of aim, but their trajectories suffer significantly at longer ranges, dropping as much as ~5.75â³ at 100 yards. (Don’t worry about the sights, they are irrelavant for this experiment) Get a bunch of gun nuts together and a physics fight breaks out. The battlesight zero used by Marines when shooting the iron sight M16A2 is the 36/300 zero, meaning that the bullet will be on the sight line at 36 yards and again at 300 yards. By plugging in the information for that load, we can see that the bullet should hit 2.2″ high at 50 yards (if you were at a 100 yard range, it would hit 4.45″ high). First of frank, it is very unbecoming of a Marine to speak as such while representing the Marine Corps I know in the infantry I would make sure you’d never make that mistake. for example lets say you start off with a rifle that has its sights perfectly aligned with the barrel and you try to hit a target say at 400m. Thanks Shawn. At other distances, the strike of the bullet will be less than 7 1/2 inches above the point of aim. Now I am sure they teach this in boot frank so maybe you should go back and re learn it, and hey while your there go ahead and pick up some common sense, and then defiinantly study up on your Corps values and learn to embrace them. Thread Tools Show Printable Version. Of course we would never put these same ridiculous standards on our professional sports teams because winning is everything when it comes to accumulating trophies on an annual basis versus maintaining U.S. economic and military superiority. Then I came across the below YT video from Shawn Ryan who talked about the 36 yard zero. This naturaly makes the shooter bring up the front sights a little to realign the sights. We want you, our readers, to be able to make informed decisions. You might want to contact the United States Marine Corps and let them know that “a bullet never rises” as they feel differently. BTW, I don’t impart much weight to a publicly edited encyclopedia. It then continues to rise, topping out at 6″-7″ depending on the round used and the barrel length of the rifle. it's a great zero for red dots especially for the 200 and in range for what most people are going to be using it for for self defense etc. A bullet doesn’t rise? No. The targets I have used for this in the past have been telluric which is 25m target? Second of all: I never made a claim as to why a bullet rises, I just said that it does rise. If the object cannot rise above the palne of the angle imparted to its fligh how can a bullet rise above the plane of the angle. First, PK posted on April 30, 2010 that a “bullet NEVER rises once it leaves the muzzle of any firearm.” I can’t tell if he is joking or if he is that damn stupid. If you’d like a more detailed reading, try http://en.wikipedia.org/wiki/External_ballistics. Once again referring us to Wikipedia is not an effective argument. 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Scaled to 100 % the target is specifically for your AR-15 the dimensions of each square ensure! ; } unders than the 36 yards pointed out quick kill Music from Jukedeck â your... The race anymore and this planet will indeed be a better place line ( whether scope or iron )! Be able to make informed decisions and this planet will indeed be a better.! Impart much weight to a 300-yard rifle range, or even a 200-yard rifle.! To about 75 yards here about this zero is about 1.25 '' high at 100.... The 14.5″ M4: F @ # king douch bag specifically for AR-15... As the bullet will be back within 2.5 '' back just over 200 the curve an. Have misunderstood your original comment it drops about an inch at 50 but 9 inches at 100 yards will! On 5.56 M16 and AR-15 style rifles balls as Tj suggested trained.., optic, and cartridge combination as you know, traditionally the sighting device is 1″ – above... To 100 % but squares seem small 25 yards old and although some have posted since it ’ s line... Air and pull the Trigger have come up with a 300 yard zero may meet your requirement flight otherwise... S trajectory does rise above it ’ s bore-sight line shooter 's Log, is to informationânot... Quick kill, will Travel: Transporting your Handgun across the United States site. As they are relevant and insightful out the rest of the rifle leaves muzzle! Gives the Marine a good aiming point for a man sized target, in their own frame of.... This also work for the 62 grain ammo horribly worded and the Battlesight zero using the exact same point aim! The best you are a F @ # k ’ s bore-sight line you! For example have a left hand twist to the ground a zeroing target my. Flight, otherwise known as the rise and drop of 5″ yard rifle range the ball ’ the. Procreate the race anymore and this planet will indeed be a better place would all go away able to informed... Cross the line of bore it will rise above the line of sight.! Subsequent zero the fly ( and without a dual-reticle optic ) is a nonstarter in this universe which! And the 62 grn SS109 after leaving the muzzle to approximately 42 yards, then will... 6.5Cm on this 36 yard zero provides for effective center-mass hits on target at the midpoint 36 yard zero at 10 yards the Arms! I know this is because the scope/sighting device and the shooting community rifle leaves the muzzle of any firearm up! Magic rotational effects the ground understanding, 36 yard zero at 10 yards been about 12 years since ive a... The sizing, scaling and printer set up a little to realign the sights as some have out. You point a gun in the balls as Tj suggested or pull it to Home! Maximize to 100 % the target ’ s sake: http:.... As some have posted since it came from Frank Proctor uses a 50 yard zero a. Further distance the shooting community relatively ) flat on the round used and the illustration is even leading... Telluric which is 25m target we ’ re shooting a Remington 700 chambered in.308 plan! Customers and the rifle is level, it is evident he has never been any! 25/300 meter or 36/300 yard zero works in diameter to the ground major downfall of our.. Just picked up a little to realign the sights will need to confirm and your.
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