The addition of a ballistic tip to the product line increases the ballistic coefficient of both the 69 and 77 grain loadings and reduces the velocity drop off and increases wind resistance. Also I meant to put at 2.800 OAL its jumping 0.250. In closing thank you for practicing with your rifles and exercising your 2nd ammendment rights.

The challenge is great, and the system might be just a .22 at distances pushing the edge of its capability, but, as the article above mentions, we continue to see advancement of the .223 projectile to further increase its usefulness. Some shooters are concerned that the tried-and-true MatchKing ® bullets will be replaced with the Tipped MatchKing® bullets. Individuals judging the MatchKing solely on its appearance failed to consider the foundation law of war principle of distinction. A civilian law enforcement agency using something less than the most accurate sniper ammunition could face potential liability were an innocent civilian killed or injured by a police sniper’s shot during a hostage situation, as plaintiff’s attorneys would argue that using less-accurate ammunition was negligent when ammunition with significantly greater accuracy was available. Unless you use a suppressor on it, WHY have a mere 16″ barrrel? Should you give one a try over a red dot? Referring to the MatchKing as an “open tip” projectile to get away from the confusion caused by the manufacturer’s description of it as a “hollow point,” acquisition for competition was approved. I load them with 56.5 gr of imr4955 and it takes right at 31 moa to hit 1000 yard plate. Sierra’s Reloading Manual (5th edition) states, “The MatchKing bullets are designed for pinpoint accuracy, with no consideration given to what might happen after impact. Abstention in use of such bullets applied only between nations party to the declaration. Creedmoor offers quantity discounts on the .223 Rem ammo: “Order Five (5) or more boxes of any one round to get your first price break. Enter your email address to subscribe and receive notifications of new posts by email. In the 1950s Sierra Bullets introduced its MatchKing, a 168-grain .30 caliber (7.62mm) open tip bullet designed to maximize accuracy. Finally… a projectile was produced that could really get the legs out of the 5.56 while still fitting in the magazine! Dr. Fackler’s tests – firing the M852 into ordnance gelatin (20x25x50 centimeter blocks of a 10% weight concentration shot at four degrees centigrade calibrated to reproduce the crush and stretch seen in living animal tissue, a protocol developed by Dr. Fackler widely accepted today) – prompted him to suggest that the MatchKing’s terminal ballistics would be improved by expanding the aperture because M852 terminal ballistics were like those of 7.62mm FMJ M80 Ball. many people fall back onto the “it is just a .22”. 44.5gr to 45.0gr is the correct charge weight range for Varget and 175 SMKs and long range. The last ten loads, using 39.0-39.5 grains of Varget, 42.5-44.5 grains of Reloder 17 and 38.0-39.0 grains of Reloder 15, are shown above. The Sierra Open Tip Match on the left and the Sierra GameKing on the right.

The driving motivation for the design of each MatchKing bullet is accuracy. I did load them mag length as well as jumping .015. May 23, 2016

Guess im a few years behind the times. As you can see from the above table, when Sierra’s G1 BC is averaged for all speed ranges (which is representative of long range shooting) the results closely match the Applied Ballistics’ measurements of the same bullets, averaged from 3000 to 1500 FPS. Also, many of the stories you hear about bad guy needing to be shot 5 times before he drops are often wrong! In each case wound ballistics tests based upon Dr. Fackler’s protocol, today an integral part of the legal review of new military small arms ammunition, reconfirmed Dr. Fackler’s 1985 conclusion that the terminal ballistics of OTM projectiles are similar to those of FMJ Ball, that is, they do not “expand or open easily” in soft tissue.

If you are 100 yards away and at that point you are going to try and evade, you are too late. MatchKing with IMR 4064 and VARGET, Budget precision rifle options? It will do the job with expensive rounds and good-great shot placement. You want to engage the enemy from the max range possible. Sierra Bullets has remedied this somewhat by referring to it as “open tip match” in its invoices. At 100 yards you can be heard, seen and even smelled. _gaq.push(['_setDomainName', '.accurateshooter.com']); In less pie in the sky fantasy, if we take the 77 STMK and shoot at a 9 inch round target at 450 yards, we have to estimate properly within 36 yards of error. Project Guns- Gunsmithing articles and posts, Bartlein Heavy Varmint contour 1:8.5″ twist barrel, Bartelin 1:8.5″ twist Heavy Varmint barrel, MagnetoSpeed V3 versus Oehler 35P: Chronograph comparison and review. In 2001, a Swiss ballistics expert at the Swiss Low Noise Ballistics Facility described the OTM as a “hollow point that doesn’t perform like a hollow point” with respect to its terminal ballistics. I shoot 600 yds A LOT with an AR. Late Season Reminder — Replace Your Safe’s Keypad Battery! Looks like you are dialing the load in. Awesome work! Varget showed moderate velocities, decent accuracy and consistent velocities with single digit standard deviations. In my barrel anyways, 7.7 Krieger. Our 123 is one of our best sellers and suits a lot of uses for which the 142 is too heavy. Creedmoor currently offers .223 Rem competition ammo loaded with three of the most popular projectiles: 69 grain Sierra TMK (Tipped MatchKing), the 77 grain Sierra TMK, and the 77 grain Sierra BTHP. Kel-Tec RDB Survival Review: A Better Bang Stick?

In addition to providing information about a given cartridge’s velocity, the ability to determine the standard […], Since its introduction by Hornady in 2007, the 6.5 Creedmoor (sometimes shortened to Creed) has established a strong foothold in the US rifle market. In 1993 the Marine Corps identified its expectations for 7.62x51mm accuracy. Since Sierra introduced the Tipped MatchKing® (TMK®) line of bullets in 2015, we have had a few questions from customers regarding the two lines of bullets (MK vs TMK). All Palmetto Reloading Gear/Accessories! Consult appropriate load manuals prior to developing your own handloads. JavaScript is disabled.

Precious few of us have access to anything past 300 and those are the lucky ones. especially if you are dealing with long range shots? _gaq.push(['_setAccount', 'UA-6323545-2']);

Custom rigs for a mid-range budget, Customizing the 1911: machining a golf ball front strap, How to cut and crown a rifle barrel and install a brake, Building a custom 6.5 Creedmoor bolt action pistol, DVD Review: Tactical Pistol Operator with Paul Howe, 500 yards with a 223 Remington: Wood stock, solid pilot reamer and Shilen barrel…, Bolt action rifle muzzle brake installation: Installing a Surefire MB762SSAL/RE.

The 5.56mm 77-grain Sierra MatchKing MK 262 MOD 0/1 (DODIC AA53) was fielded in 2000.

6.5 Creedmoor, Cartridge Selection, Reloading While SAAMI standards specify a maximum OAL of 2.825″ (see link), most shooters using the AICS magazines will limit their OAL to 2.850″-2.860″ to allow the rounds to cycle reliably in the magazine (in general, the longer the OAL of a cartridge in an AICS magazine, the more likely it is to bind during feeding). Its extremely small aperture stood in obvious contrast to an “expanding bullet” such as the Sierra GameKing. Many shooters are aware of the previous level of awesome unleashed on the 5.56 ballistics world known as the 77 grain SMK which is famously put together in the Black Hills Mk262 Mod 1 loading. I would like to see your reloading recipes on the old and new ones. Confusion continued within military circles. 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; The “not for combat use” language was placed on OTM ammunition boxes in 1980 when it was approved for military competition use. At that price, when you consider hand-loading, you have to ask yourself “what’s your time worth”?

The Sierra Tipped Match King line has made its way online, and it looks to add a new layer of awesome to shooting the AR15. That said, going forward, I will be ordering 69 grain STMK for my future loadings. Ultimately you end up with less case capacity and less velocity negating the detable increase in BC claimed. Doing so overestimates the performance of the bullets over long range, and will cause you to hit low compared to your trajectory predictions.”, Share the post "Litz Field-Tests BCs of Sierra Tipped MatchKings", Tags: Ballistic Coefficient, BC, Bryan Litz, G1, G7, Sierra Bullets, Tipped MatckKings. And i just finished loading 1k rds with 77 grain nosler hpbt and opened another box to load. The 1899 Hague Declaration does not use the term “hollow point” as such, but “hollow point” became the common lay term to summarize the Hague Declaration prohibition, neglecting the additional criteria that the projectile “expand or open easily” on impact with soft tissue at all distances.

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