I thought the results were interesting for the 30 cal. I couldn't get them to group worth a crap. You can either increase velocity, or you can tighten up the twist rate. Still, this is really no problem . Sure is going to limit the popularity of this bullet. Butterbean is running 101gr Hammer bullets at 4400 fps from his 300 RUM. .22-250 Remington | Handloader Magazine SUB-X™ (Subsonic eXpanding) bullet with patented Flex Tip® technology, specifically designed to expand at subsonic velocities yet meet FBI protocol. Your bullet is STABLE. Calibers and Twist Rates. Rifle Barrel Twist Rates - Chuckhawks.com Aluminum tip is precision machined and longer than polymer tips which moves the center of gravity and enhances inflight stability. Does anyone know the recommended twist rate the Hornady's Match 105 GR. Barrel Twist rate needed for 175gr Hornady ELD-X bubble wrapped Payment is CCard check or money order Gunbroker Pay. Twist rate question about Hornady 75 ELD and 88 ELD bullets - 04/04/19. Barrel Twist rate needed for 175gr Hornady ELD-X The bullet is .900" long. For reloads: 243 win sierra 6 cm hornady 6.5 cm hornady 270 wsm berger 7-08 berger 7 wsm berger 28 nosler berger 30-06 - berger 300 wsm berger 30 nosler berger 325 wsm sierra 33 nosler hammers 375 h&h barnes I thought the results were interesting for the 30 cal. twist rates with a search but not the 178 gr.. This rigidity is a result of the RPM of the bullet in motion. However, most of the Hornady 50-grain Super Explosive bullets with 28.0 grains of W-748 did disintegrate in flight when shot through a Smith & Wesson M&P15 PC .223/5.56 NATO with a one-in-8-inch twist. Hornady is now producing its ELD Match bullets in 52-, 73-, 75- and 80-grain weights. A faster twist increases pressure, barrel wear and also the strain on the . Twist Calculator - The Barrel Outlet. --->>> Hornady Pennsylvania Conical Muzzleloading Bullets 50 Cal (512 The second number refers . It takes less twist to stabilize a given bullet at high velocity than at low velocity. As we get faster and faster twist rates - this is becoming more of an issue. Since the upper is easily and often . The twist rate is measured by how many inches of bullet travel down the barrel it takes the rifling to twist the bullet one full turn. I never worry about bullet blow ups - modest velocity, relatively thick jackets, nice smooth lapped barrel, and 205,200 rpm's (10 twist). Posted: 6/2/2021 4:29:24 PM EST. Same round on all game killed with same results each time. These three 5.56 NATO chambered rifles feature twist rates of 1 in 7, 1 in 9 and 1 in 8 inches, respectively. Location. It misses the "Stable" classification by a whole .09 "points" (1.41 vs 1.5) . I would like to hear how these loads work for you, and I hope that you have a fun and successful bear . Mach 2.0 (2,233 fps @ ICAO Standard Atmosphere) and Mach 1.75 (1,954 fps @ ICAO Standard Atmosphere) BC values are also available. Twist rates and bullet weight are often understood, but there are some simple and practical guidelines. This allows them to be useful for varmint hunt-ing and competitive on 600-yard "match" targets. Three ways to get the Hornady Handbook of Cartridge Reloading. QUALITY CONTROL The few bullets that did not tear apart hit a foot or so to one side or the other of the target at 100 yards. Plus you can save favorites, add notes and more. Bottom of each box has a sticker that says Twist Rate 1-7". RPM is determined by two things, in this case: 1) Velocity of the projectile, 2) Rate of twist of the guiding barrel. Calculated using the rifle's twist rate, bullet physical characteristics, the center of gravity, aerodynamic properties, and velocity. Reloading data is available as low as 99¢ per cartridge or purchase a subscription and . This cartridge is loaded with a powder that is optimized to provide flash suppression, clean burning, yet function in short barrel to carbine length rifles. This bullet is well suited for guns with faster twist rates and is extremely reliable for patrol carbine use or any other situation that may involve vehicles or barricades. Like the .50 cal. The twist required . ELD Match bullet. I think it is a generally accepted conclusion that Ruger went with a marginal twist rate for the 40 grain bullets when they decided to use a 1/12" twist. You may also try the 212 or 220 grain ELD-X. At the same velocity in the same caliber, longer bullets require faster twist rates than shorter bullets. GMX® is a monolithic solid bullet constructed entirely from a premium copper alloy that will deliver high weight retention and deep penetration. This VMAX bullet has explosive fragmentation upon impact. The first iteration of the FN SCAR 20S has a 1:12 twist rate. Aluminum tip is precision machined and longer than polymer tips which moves the center of gravity and enhances inflight stability. Twist Calculator frikinelmo 2016-12-05T18:13:22+00:00. ELD Match and 88 gr. On the box states for 1 in 14" twist barrels only. There is nothing quite as frustrating as banging the 16th inch of your muzzle on every surface imaginable as you try to . An observation I have made while digging bullets from sand backstop (I always do this) is bullets fired near or at minimum listed twist rate have inconsistent expansion sometimes. Hornady .243 / 6mm 105 grain Hollow Point Boat Tail Match bullets: The bullet from Hornady's 6mm ARC BLACK ammunition, this mid-weight AR bullet is designed for maximum expansion on impact. SG = 2.42 Bullet BC (G1): 0.475 Your bullet is achieving its max BC. After the launch of the 224 Valkyrie, a 1:6.5-inch twist rate barrel was introduced into the market in efforts to better stabilize longer (heavier) bullets and increase accuracy. A. Nosler took the 55g bullet off the market for some years and re-introduced a newer design on the 55g bullet which now stabalizes in all of my 14 twist 22's of what ever caliber. The number increases as the bullet moves downrange. Hornady, for example, recommends a 1:8 or faster twist barrel for its .243 108-gr. (Learn More). An observation I have made while digging bullets from sand backstop (I always do this) is bullets fired near or at minimum listed twist rate have inconsistent expansion sometimes. Spinning a bullet markedly too slow or too fast is detrimental to accuracy. For Hornady ELD-X bullets (polymer tip), use the JBM calculator. I don't know if my barrel's rate of twist was wrong for such a fast bullet or what. Article Reprint: SWAT Magazine October 2013. A faster twist increases pressure, barrel wear and also the strain on the . At a muzzle velocity of 1,000 feet per second (fps), the bullet is spinning at 666.67 revolutions per second (rps) or 40,000 revolutions per minute (rpm). Hornady's 153 grain 6.5mm A-Tip bullets are an ideal choice for cartridges like 6.5 Creedmoor and 6.5 PRC. All samples in pics are through 2 layers of cardboard into sugar sand backstop at 100yrds. I have a 12" twist- I can find all the other ELD-X min. This bullet works best with fast twist barrels. The Barrel Outlet's Barrel Twist Calculator Calculator is a tool for determining the Gyroscopic Stability (GS) of your bullet and is based on the Don Miller twist rule. My rem783 7mm rem mag has a 1:9.25 twist 24" barrel. Fedex just delivered two boxes each of said projectiles, Hornady .224 75 gr. Bottom of each box has a sticker that says Twist Rate 1-7". Flatbase bullets are more forgiving, but Hornady's design gurus finagled the profile to make the long, sleek boattails on A-Tip bullets as forgiving as possible. Samples to the left are spun well over listed rate. Generally the Berger calculator will overestimate the twist necessary to stabilize bullets with polymer tips. The best way to determine the twist you'll need is by consulting the bullet maker. Understanding Twist Rates. The ammo will come in clear plastic bag. The .900" value is followed to the right until it intersects the minimum twist requirement line. I have a 7mm RM that is a good example of this. Hornady, Barnes, Berger, Nosler, Cutting Edge, etc. About 156 grain 6.5mm A-Tip Bullets. Caliber. Zero at 100 yds yields 11" drop at 350 yds. A twist rate of one turn in 9 inches in a 6mm Remington or a one-in-10-inch twist in a .243 Winchester will stabilize all common .24-caliber bullets from 55 to 100 grains. It's generally accepted that a bullet over 1.2 in these calculators can be stable, especially if you speed it up a little. My message: "I've seen warnings that your .300 Blackout 110gr Vmax cartridge should not be used with a suppressor in barrels with twist rates faster than 1:7 as the bullet can come apart and damage the suppressor. Been thinking of changing from the 162 gr A-Max to the 175gr Hornady ELD-X as it has a better BC than the 162's. My rifle is a Rem 700 with a 24 inch 1:9.25 barrel (factory) Is it likely to stabilise the bullets OK, I have read also that stabilisation has a lot to do with the length of bullet as well and these are quite long. It is designed for fast twist barrels, such as the Lyman Great Plains Hunter . By contrast, take a 22-250 varmint rifle with a 1 in 12″ twist firing a bullet at 3,600 fps. So, given re. .172 (.17) 6″ 4-G, 7″ 4-G, 9″ 4-G, 10″ 4-G. .177 (airgun) Hornady now publishes "200 yard" Mach 2.25 (2,512 fps @ ICAO Standard Atmosphere**) G1 and G7 Ballistic Coefficient (BC) numbers for all A-Tip®, ELD-X, and ELD Match bullets. Bullet No. From the Hornady website: TIP DESIGN. Would be shots maybe up to 75 yards. twist will stabilize bullets weighing from 55 to 75 grains. Ammunition: 230 gr Berger Target Hybrid at 2826 fps (lightest bullet used is 200 gr Hornady ELD X). If you don't need to shoot over 600 yards try the 200 grain A-frame or Nosler Partition. For the bullets it was designed to shoot — the 168gr and 175gr Sierra Match King — that will stabilize the bullet just fine. Short-barreled rifles have skyrocketed in popularity over the last several years, but has the niche outrun the knowledge in the pursuit of ergonomics? Seat the Hornady bullet to 1.610 inches and the Speer bullet to 1.600 inches. For factory ammo, Hornady. When identifying if an AR-15 rifle is chambered for .223 Remington or 5.56 NATO (as well as barrel twist rate), barrel markings should be referenced rather than caliber markings on the lower receiver. Ok, I just got a quick reply from Hornady about running 110gr V-max through the MCX' 1:5 barrel with a suppressor. For my simple & casual, .30 shooting I use my 10 twist, .300 Win mag with 200 grain Hornady ELDX bullets @ about 2850 with modest load of H1000. All projectiles tested and data presented were tested under conditions in which the Sg was in the 1.8 to 2.1 range. Twist Rate in Inches & Number of Grooves. About Hornady's 6mm .243 110 gr A-TIP Match Bullets. About 156 grain 6.5mm A-Tip Bullets. But really, that 230 Berger should shoot. With most modern AR rifle barrels you'll hear the AR-15 barrel twist rates expressed in terms like 1:7 or 1:9. But there are other bullet shapes, like the 178gr Hornady ELD, that won't spin fast enough to stabilize with that same twist rate under all atmospheric . Refined design of the AMP® bullet jacket offers industry leading uniformity and concentricity. ELD Match, these in anticipation of my new Tikka .22-250 with 1:8 twist which should get here this Saturday. This is a one shot kill on a Kudu @ 350 yards with a 308 Remington R5 and 165gr SST bullet. For rifles, this 150 grain #2115 Full Metal Jacket Boat Tail bullet is designed for semi-automatic types, and it functions flawlessly in the M14/M1A, M1 Garand and similar rifles. With your 1:8 twist you'll hit that 300K RPM mark at 3400 FPS. [ARCHIVED THREAD] - .224 bullet twist rate. Any 300 grain bullet @ 3300-3400 would beat me up real bad. 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