You may do this by making your impact point lower than your target distance of 25 yards. I was taught to respect my elders . problem is, I'm having a hard time finding them.. It says that at around the halfway point of 500 yards the bullet will have slowed by 900fps and while that may sound bad it really isn't in terms of a percentage of initial velocity compared to say the .223 Remington (would be 1481fps from initial 3214fps) or the 7.62x39mm (would be 1066fps from initial 2349fps). You may need to remove your scope, reinstall, and tighten it in the proper direction. i own a few ar15's and they are using a 50/300 battle sight zero which works out very well for the platform. Typically, a lower correction of .5 - 1.5 is required. Take another test shot after adjusting the scope to see where it lands. One of Americas favorite deer hunting rounds, and suitable for a host of other medium and large game as well. Bass, Trout, and Reds. Point blank range is at 272 yards. That's the quit and dirty, however nothing beats getting a zero for each yard like you expect to shoot. )HJ(5tH !-%X"HJItwHH_&x}}}^{Z>Q0S ;0`V4q L raoa m`E)| %R @ `0q x(XxNnXaS;_MN5_;t"'t2IJ= >*R:"Y6J$tSd L6zFv:7tC/P: ZRl,L\'zQ6PX*'r &.yXO~> @t}:pM` Assuming your rifle scope makes an adjustment of 1/4 inches for each click. Below we feature several different ballistic charts for the 308 Winchester centerfire rifle round. This website might help answer your question: I buy my wife guns for her birthday. Red Oak, White, or Chestnut for Deer Herd? You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers. is that a general rule for all calibers or just the 308? When you zero a rifle scope, it means that you adjust the rifle scope in a way that it has the crosshair centered on the bullet hole, which is also known as sight. This means that before you zero a rifle scope, you must first set up the target and take the first shot. I was merely pointing out that is not possible. Zero Distance: 25 Yards: 25 Yards: Ballistic Coefficient.625.552: Altitude: 0 ft. 0ft. We do not specifically market to children under 13. Really not that hard to figure your hold over out to those distances and I am more comfortable doing hold overs than the other stuff and can still hit em in the ear if I want at close ranges without having to think about aiming low, I would zero at 100 yards if your gonna hunt pigs. This is because it is usually within range for most shooters. Bore sights may be used in three ways. In such cases, a 100-yard zero is perfect. Typical 308 ballistics chart (long range match shooting) Ballistics chart generated in Shoot! If your rounds arent hitting the target, it might suggest your scope has to be adjusted more. It is this bullet impact point that you would use to zero your rifle scope. Not sure what to do with 270 with cds lealpold caps, but it's set up the same way for now. This approach requires more time to fire and may not always perform properly if you go beyond a certain distance. So, if youre a long-distance shooter or hunter, you might seek more modern alternatives. Bullet drop, wind drift, and energy loss become increasingly pronounced the farther a 308 Win reaches. As you can see, the trajectory line starts off 1.5" lower than sight line because the bore is 1.5" lower than the scope. ballistics software for your PC & Mac. Please let me know how it can be improved upon. =XHsNo`g ,i= .vt,V@+ :%+WniXw_} KlJ,TO6 0q(L-|tU.o9"[g ~P% %!N%V$; ` 5` wm`uK|h4*H8l}C]o! Here's a ballistic chart for a 308 Win with a 168gr factory load. He has been punching paper targets, taking deer and other game and shooting at competitions since about 1975. He donated hundreds of rounds to informal shooting sessions. 'l@O5_INA0+I d9Y8n)'7PD ` T!t20 [8qgegDll?El5 0t. d=LPPa vFga.st{#:hT0aY:B4t sV /,(IY@Zp'A ~: i2bv]?waEjS}@!F@49ISh7zi?U`hB1(_A C%Z9kd#A?`,z6P{)Oh0F/H -%.0s}~XX8Z@y]jzF /9U ``\ Your rifle scope is zeroed when you hit the target dead center or in less than a 2-inch deviation. If you have your scope mounted the normal 1.5" above the bore (center of bore to center of scope), then you would need to sight in about .25" low at 25 yards to be about 1.8" high at 100 yards. A Gun vice keeps your gun entirely steady as you zero it. AR15 [zero] 0 Degree (ONLY) Vertical Grips - POST your PHOTO - Help Community Choose! <> There are ballistic tables in the back of the reloading manuals I use. By counting the clicks necessary to adjust a scope, you may exactly measure the degree of adjustment required. If youre using a gun vice, be sure the rifle doesnt move while youre shooting. Bullets drop at different rates depending on their length, velocity, weight, and projectile type. Therefore, with a 26-yard zero, you can hold on the target and expect to hit a 6-inch vital zone from 0 . Using my rule-of-thumb, the 25% drop is -177.5 inches at 725 yards, very close to the actual drop of . How to Sight in a Scope - Step by Step Guide. You must log in or register to reply here. What's wrong with that??? TRAJECTORY TABLE TRAJECTORY TABLE, FEDERAL MATCH .308 CAL.168-Gr. Thus the difference is 74.61 inches. Set targets out to 200 yards Now, move the paper targets to 200 yards and repeat the whole process. That would absolutely be true if you were in a pure vacuum. (Any cartridge that sees widespread use in wartime is necessarily going to remain popular with those hunt in peacetime.) It will be a lower on your target's Bulls Eye. SMK bullets.. Each of the below charts has a 100 yard zero. As an all around work horse for sniping that works great for both Law Enforcement and military sniping, the .308 is hard to beat. My only objection to this is that your holdovers increase dramatically when you compare a 100-yard zero to a 250 yard zero. The more we all know, the better organized and stronger the shooting and hunting community will be. With a 168 grain bullet and 2650 fps muzzle velocity (Federal Match with Sierra Match Kings) and your scope center 1.5 inches above the barrel center, sighting in your zero at 50 yards would mean that the round would be. zeroed a new hunting rifle at 100 yards and documented what i need to dial at 200 yards. Follow these steps to set up your scope at 100 yards. He currently reloads for over 10 calibers, both handgun and rifle. Not with a 250 yard zero you won't. NN&3;'(8U2gU##;\PY`p-+`r;N&OB,-|g3+Qj1'lI\Z~P{) K hK0Vv`A]4zp^;!0T ;FHr#|NbdwaR NN Many have noted the 308 Win's shortcomings, often attributing a great deal of its popularity to mere tradition. We measure trajectory in terms of bullet drop at specific ranges. Any use of this content without express written consent is prohibited. In this article, we will learn how to zero a rifle scope at 100 yards. 1.27 inches low at 150 yards. It may not display this or other websites correctly. The 270 Winchester has been described as very flat shooting similar to a 6.5 . Not that it really matters, but there is one small thing here that I want to point out. It is possible to get pretty close to a 200 yard zero while using a rifle zeroing target at 50 yards. When setting your zero at 100 yards, check to see if the scope and bore are aligned. I like this set up for pigs because there is no adjustment needed and I'm in the vitals on a center of mass shot out to 300yards. Most folks prefer a 100 yard zero, as do I. Winchester had already introduced the 308 Win two years earlier, however, and it featured virtually the same T65 design that the 7.6251 would as well. This means youll need to adjust your scopes elevation turret to come up 7.47 MOA. That is, assuming your shots are hitting the target perfectly. While some disparage the 308 Wins low power, others uphold its lower recoil as its primary benefit. 90% of all shots will fall in that group. Nosler AccuBond, The Best Self Defense Ammo Ballistic Testing. Hunt In: coke county, tx Nolan county, tx. Sort of like dropping a pound of feathers an a pound of leadwhich would hit the ground first? TexasBowhunter.com Community Discussion Forums. *Must have a registered ARFCOM account to win. Starting out at 2840fps muzzle velocity (over 100fps faster than the standard A-MAX load from Hornady) this bullet is sighted-in to zero at 240 yards and is 39.16 low at 500 yards. I'm not trying to shoot golf balls I'm trying to kill animals, and the setup has done well for me; it may not work for everyone. Close enough that it won't matter for hunting. = p.o.i. If your target is 1,000 yards away, the bullet drop would be several feet, and most riflescopes do not have that kind of range. JavaScript is disabled. Youll save a lot of ammo if you boresight. I zero at 100 yards on all rifles. This calculator will produce a ballistic trajectory chart that shows the bullet drop, bullet energy, windage, and velocity. This does not mean that your scope should always be zeroed at 100 yards. Sighting-in a hunting rifle to hit a certain number of inches high at 100 yards (or 100 meters) maximizes the point blank range of the . I ran this based on your Hornady 168g Amax. 6.5 CM vs .308 Ballistics Comparison 6.5 Creedmoor vs .308 Velocity. A short-action cartridge permits a more compact rifle, an invaluable perk during long hunts or treks through the brush. Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. Internal ballistics refers to what goes on within the gun. TNVC/NGI Giveaway: 15 winners with over $7000 worth of prizes!! Zeroing a scope at 100 yards is simple, and even amateurs can easily zero a scope at that distance without any challenge. When your crosshairs are aligned with the bulls eye on the target, fire one bullet and look at the impact point. However, the elevation range of your scope may not be adequate to change by that much, and you will still miss your shot. The 308 Wins .308 bullet has an innately high ballistic coefficient but its power is often inadequate to stay on course very far downrange. Ballistic Trajectory Calculator Use this ballistic calculator in order to calculate the flight path of a bullet given the shooting parameters that meet your conditions. Their ballistic chart says with a 200 yard zero that you are 2" high at 100 yards and 1 3/4" low at the muzzle. Some scopes allow for varying ranges of parallax adjustment, although most of them come with parallax that is set at 100 yards, making it easy to zero your scope at that same distance. The heavier dashed line (0.0) is the "line of sight" through the scope. You can also zero your scope for a longer range. American Eagle (Federal) Full Metal Jacket Boat-Tail, 150gr. When you buy through our links, we may get a commission. For the .308 Winchester, 168-gr. lb Muzzle Velocity ft/sec. We simply need to apportion those 74.61 inches of drop at 725, 750 and 775 yards. Check that the scope mount if it is properly installed. Lets say you shoot a 150gr Swift Scirocco factory load from Remington in your 308. My come ups are 3.5 moa to get centered at 300 yards, another 12 to 12.5 moa to be centered at 600. if you zero at 200 yards you'll never be over or under 3" high or low all the way to around 230 yards. Save my name, email, and website in this browser for the next time I comment. Sorry but I keep going over this if he is zeroed at 100 and presuming his scope is 1.5" to 2" above the bore axis, how could it hit 6-8" low at 50 yards? That gives me p.o.a. It's an excellent deer cartridge, and bullets around 165 grains can take out deer even at 500 yards. You can use any laser bore sighter that is convenient for you, whether red or green light. Here's the chart I was looking at. My two varmint guns are zeroed at 225 and 275 yds. The .308 cartridge is considered overkill for game smaller than a deer. The two most important variables are the Initial Velocity and the Ballistic Coefficient. Example you can hit the 6 inch vital zone typical of a whitetail deer all the way out to 272 yards without holding high (above the animal) or low you just aim at the vitals and squeeze the trigger on your 308. This must occur on a regular basis at 100 yards with the .308. Trajectory curve of bullets from most bottleneck cartridges in the .243 Win. Your email address will not be published. Mike Hardesty is a published freelance gun writer. Optimum sight setting for a 6 inch vital zone for this ammo and your firearm is as follows: Shoot! The 308 Win delivers a slightly steeper drop than the larger and more powerful 30-06 or 300 Win Mag, yet its recoil is far more manageable thanks to its lesser muzzle velocity. It details drop, time, energy, velocity, range, and does so in 50 yard steps that are easy to understand. I zero my 308 for 2.5" high at 100 with a 168gr. So even if you put your reticle's 200-yard drop marker right on his heart, you're going to hit more than four inches low. I'm shooting the Barnes TTSX 168 Gr. I didn't check the math but this is the right concept. In our trajectory graph, we show how much the bullet drops in inches from the zero point. To zero this 308 load for another distance, look at the last column in the ballistics report named Zero Adj this stands for Zero Adjustment (MOA). If your .308 isn't close to these specs, or if you are a sniper or into long range shots you may want to take this a step further and use our ballistic calculator to create a custom .308 ballistic chart to take into account variances. Now sight-in your 308 to hit the bullseye or center of the target as close as possible. Bullet trajectory tables and charts, as well as ballistic calculators, can be used to compensate. You can zero a rifle scope at a distance of 25 yards, 50 yards, or even 150 yards if you choose. With dozens of articles and reviews published inPew Pew Tactical,Snipercountry.com, andTTAG(The Truth About Guns), Mike is considered a firearms expert. The Rise and Drop are expressed in INCHES. With the Ruger American Rifle in .22 Magnum, several shots in an inch at 25 yards is easy. This is as a result of a bullet drop. If you like to ear hole them then you may look at fine tuning a bit more for your set uo. ballistics software makes it easy to experiment with different bullets at various velocities and distances and watch the result on a scaled target (just like you were shooting at the range). As a general guideline a group 1 to 1 /12 inches high at 100 will zero close to 200 yards. "I'd rather be judged by twelve than carried by six". Setting your zero depends on the intended application. For a better experience, please enable JavaScript in your browser before proceeding. If you do not have a Shooting Chronograph, I strongly suggest you purchase one. You can then also add atmospheric conditions and angles. If you zero for certain ammo and then swap to another ammo like Remington magnum cartridge, your entire setup would be thrown off. If the parameters change, your previously aligned rifle and scope will go out of alignment. using Hornady 168gr A-MAX Superformance Match factory ammo. msp3903, I clearly stated: "The barrel is aimed up slightly so the bullet will rise until it hits peak trajectory at about 100 yards." Our next 308 Win ballistic chart shows 130 grain Varmint & Predator rounds. I went to the range and got it on paper and grouping okay. [ARCHIVED THREAD] - 308 impact at 50 yards with 100 yard zero. Bullet Weight: 168 gr Initial Velocity: 2700 fps Sight Height : 0 in Shooting Angle: 0 Wind Speed: 0 mph Wind Angle: 90 Zero Range: 0 yd Chart Range: 1000 yd Maximum Range: 5905 yd Step Size: 25 yd International Standard Atmosphere Altitude: Sea Level (0 ft) Barometric Pressure: 29.92 Hg Temperature: 59 F Relative Humidity: 50%
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