Then I came across the below YT video from Shawn Ryan who talked about the 36 yard zero. Since a bullet crosses the line of sight at 36 yards and again at 300 yards when a rifle is zeroed, a rifle’s zero may be established at a distance of 36 yards and the same zero will be effective at 300 yards. If this were to be setup precisely with no distractions to the round while carrying the 300 yard length, you would have a hole at the 36 target and 300 target to be fairly fairly close to the exact same elevation while the 150 yard target would be much higher. Quite a bit of what is written there makes send and is pragmatic. So for a supersonic zero I have changed to a 25/150 yard – as illustrated by the red line above. Time limit exceeded. The 300 BLK is a special purpose round of limited usefulness in the real world. If you’re looking for the best budget scope for 300 blackouts that are pretty accurate and easy to use, the UTG 3-12×44 is the right option for you. Put a rifle in a clamp with the barrel exactly two feet high and exactly perpendicular (level) to the ground. }. Time limit exceeded. 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. It has great accuracy, fantastic handling, and fault-free function. The sight line should be shown as level, not the gun. We chronographed several of the 6.5 Grendel loads from my 18″ barrel and the velocities for 120-123 grain bullet run about 2400-2425 fps. Bullet Type Primer. Your second post is correct. Therefore, if we are hunting white tailed deer, we can tolerate a maximum rise and drop of 5″. To obtain a 200-yard zero with the Hornady FTX load, you’ll need to be five inches high at 100, which is a bit drastic. I apologize, for I seem to have misunderstood your original comment. For a 10.5 inch barrel, the 50 or 36-yard zero will be ideal. ×  The 300 Blackout gives the AR-15 the ability to shoot a much larger bullet, in fact, similar to the 7.62x39mm round used by the AK-47. I'm shooting 125 grain bullets around 1800 fps. I am Old Army, here is a quote for thought: “Swearing and verbal filth is not the mark of a soldier (or Marine?). We’re shooting a Remington 700 chambered in .308 and plan to use the 180 grain Remington Core-Lokt mentioned above. And this feat is achieved by simply sopping out the upper receiver. 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. 1050 speed. The problem with zeroing your rifle for 293 yards in this case is that not many people have access to a 300 yard range. Wilson Combat AR-15 Ranger: Best .300 Blackout Rifle for Hunting. 300 Blackout Zero Distance . Any favorite ballistic calculators out there? The 300 Blackout (pronounced “three-hundred black out”), officially known as the 300 AAC Blackout or the 300 BLK, or 7.62×35, is a rifle cartridge designed to … The sighting system I’m using now is flip-up BUIS for supersonics and my Aimpoint T1 for subsonics. That setting leaves me 2″ high at 25 yds, 3″high at 50 yds, back to 2″ at 75 yds and zero at 100 yds. 5 Our first zero for this rifle and cartridge combination is actually just shy of 20 yards, and you can use that distance if that is the only range available at your local shooting gallery, but be aware that minute errors in measurement which may not be apparent at that close range will be magnified at longer distances, possibly throwing your shot off. No. I will primarily be running supersonic factory ammo. Now, for the most part, this 300 meter zero will allow for hits on the E type target all the way out to about 400 meters when using a center of mass hold and allowing for the full 20 inches of target below center of mass. If you really want to try it out, go sight in at 36 yards. The magnitude of the effect of each of these forces is up for debate depending on the EXACT place (as in latitude and longitude), distance and elevation to target, air pressure, air density, humidity, and trajectory of the shot. Before pulling the trigger, get a precision level and see how far your barrel is aiming upwards, thus showing you that the round goes up because you are pointing the rifle up, but aiming your sights level. It first crosses the line of sight on its upward path of trajectory at 36 yards, and again farther down range at 300 yards. ( Log Out /  Likewise, I was under the impression that the original 50/200 zero was actually a 50 yard/200 meter zero. 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. Do you think he made up all of those insults on his own or were they a cumulation of excerpts from his growing up in the Corp. PK, 300 Blackout Ballistics Trajectory Chart. There is a reason that “sniper” is an entire job in the service, not just an additional duty (like Designated Marksman). The round really was originally designed to be subsonic, ideally carrying a massively heavy 240gr Sierra Match King bullets to maximize energy at subsonic velocities. Then do your math for your 8,10,12,20,30 chart. RIFLE BALLISTICS. Pick whichever one you want to memorize the holds for. a bullet will rise with enough force pushing it foward thats why jet boats or cars going fast enough will fly if going fast enough. 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. As the forces of gravity and friction slow the bullet down the anglular forces lessen. Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Reddit (Opens in new window), Click to email this to a friend (Opens in new window), Click to share on Tumblr (Opens in new window), kR-15: info and resources for firearms enthusiasts, what distance to zero your 300 Blackout (BLK) rifle. It has the least amount of "spread" (combination of drop and rise of bullet out to 300 yrds) and you can download and print the target for free from the video I posted to get a 36 yard zero at 25 yards Max range 300. Designed specifically for a 300 blackout round in conjunction with Advanced Armament Corp. Based on the extremely popular CMR2 reticle; Features hold over points for both sub-sonic and supersonic rounds; Designed for a 100 yard zero distance; Sub-sonic holdovers extend to 400 yards while supersonic holdovers go to 900 yards Ran out all the math for the 16" best iron-sight zero distance, and came up with this, for 25 yards. Please click the reload button and complete the captcha once again. Is there a published ballistic table for proper BSZ for the 16″ AR-15 or the 14.5″ M4? Using bipod and sandbags, preferably on a bench or in the prone position, at 6X, adjust your turrets to dial in your point of impact (5) rounds at 50 yards to center dot. With both the 55 grn M193 and the 62 grn SS109? All-Copper Handgun Bullets: Are They Worth It? 36 Yard Red Dot Zero: What Is It & Why Do I Use It?#GhostTactical #RedDot #36YardZeroToday, we talk about the 36 Yard Zero. 300 Blackout on the other hand is designed for slower velocities and the Barnes 110 grain Black Tips are excellent at expanding out of short barrels. Those of us who Remember physics 101 (and in my case, teach Calculus 101, which uses physics problems as examples) remember a formula like h = v_0 t – 1/2 at^2, where v_0 is the initial (upward) velocity, a is the acceleration due to gravity (e.g. There its drop is more than 30 feet (with a 100-yard zero) and energy drops to 309 foot-pounds. By Randy Wakeman. Save Share. The 300 Blackout (pronounced “three-hundred black out”), officially known as the 300 AAC Blackout or the 300 BLK, or 7.62×35, is a rifle cartridge designed to … Oh, and as an extra requirement, how about achieving the first two with the AR-15platform we already have. But because the barrel is not level with the ground but angled upward relative to the line of sight, the bullet rises IN RELATION TO THE GROUND ONLY before arcing back to earth. Its shorter effective range is more suited to urban and jungle warfare where visibility is limited and most engagements are at close range. When I launch a ball, even at an upward angle the flight of the ball will never rise about the plane of the angle thrown. 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). 300 Blackout Subsonic Zero Distance . Frank should have learned that at home. 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. Period. If you want to sight in at 50 yards - … I questioned the Basic Rifle Marksmanship instructor on this exact thing! However as I have grown into my kit and decided what works and doesn’t work well a new approach has taken shape- and it’s worth sharing. There its drop is more than 30 feet (with a 100-yard zero) and energy drops to 309 foot-pounds. You can see here that the load has a big affect on the BLK- the 220gr subs drop like rocks at 125yds. Believe it or not, the 300 BLK has all the attributes to make it really well suited for hunting white-tailed deer. The Shooter's Log, is to provide information—not opinions—to our customers and the shooting community. And I have to agree–the illustration by the OP sucks. It is evident he has never been in any of the Combat Arms MOSs (if he was even in the military). Standard ballistic table provide that information. “What does change is the trajectory of the individual bullet/cartridge.”. The .223 has proven itself to be an excellent soft target stopper without overpenetration. 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