Just like mountain climbers, they do it because “it’s there. If it is indeed the 240 Weatherby, what is the longevity of that cartridge? https://www.fieldandstream.com/story/guns/the-fastest-rifle-cartridges These cartridges are often created in order to optimize a certain performance characteristic (such as the power, size or efficiency) of an existing commercial cartridge. Wildcat cartridge designers are not in it for the glory or to get rich. His first wildcat cartridge was the .219 Zipper Improved, which he released in 1938. Obviously, this is a cartridge that has been designed for long-range big game hunting. The Austrian 9×25mm Super Auto G pistol cartridge is probably the closest ballistic twin of the 9×25mm Dillon. https://www.shootingtimes.com/editorial/12-great-6mm-cartridges/383544 22 Caliber Wildcat Cartridges. This case was chosen because he had made up a small bolt action which was exactly right for the Carbine cartridge. However, the OP was seeking the fastest short action 25 cal. I loved that 1906 cartridge so much that my, now, 2nd fav cartridge after the .300 is a 25-06. It has been known to reach speeds of 4000 feet per second which is the equivalent of 2,700 mph. Some wildcats of yesteryear were no more complicated than changing the neck diameter of an existing factory cartridge case. A wildcat cartridge that, by definition, requires case modification is not the place to learn about reloading. From that year until his death in 1989, Ackley invented dozens of improved wildcats along with more complex original designs. Precision rifle cartridges with optimized efficiency for extended-range hunting and long range rifle competition. .22 Eargesplitten Loudenboomer achieved 4600 fps with a 50 gr bullet. WILDCAT RIFLE CARTRIDGES: Miniature Varminter: The .17 Mach IV (Article by Chuck Hawks) The .20 Tactical (Article by Chuck Hawks) The .20 VarTarg Wildcat Cartridge (Article by Don McClellan) The .218 Mashburn Bee (Article by Chuck Hawks) The .22 K Hornet (Article by Chuck Hawks) The .220 Weatherby Rocket (Article by Chuck Hawks) List Of Wildcat Cartridges. A wildcat cartridge, often shortened to wildcat, is a custom cartridge for which ammunition and/or firearms are not mass-produced. The stubby cartridge will drive the 120-grain bullets to 2,700 fps, and the 130-grain bullets to just over 2,500 fps, but the beauty of the design is its lack of recoil. 22 CM may be a wildcat cartridge, but it is gaining popularity due to its outstanding performance. (L-R): .303 British, 6.5x55 Japanese, .30-06. Since there are no C.I.P. or SAAMI limits and data sets for wildcat cartridges this data has to be regarded with caution. also reigns as one of the fastest commercial cartridges around, breaking 4,300 fps with 20-grain bullets and 4,100 fps with 25-grain pills. There are currently at least 10 different popular 6.5mm rifle cartridges; five of them, including the 6.5 Creedmoor, were introduced in just the last decade or so. The 32-grain bullets run about 4,200 fps, and the 40-grainers move out at 3,900 fps. The .17 Remington, introduced in 1971, was the first .17-caliber cartridge offered in both factory rifles and commercial ammunition. Since the wildcat cartridge was already quite popular, the .22-250 was a major commercial success after Remington opened up a whole new market segment by manufacturing their Model 700 rifle in the cartridge and selling factory .22-250 ammo. 30 Caliber Wildcats . Rather, I’d like to call this piece “Five Wildcats I Think Are Cool,” and leave it as an impetus to promote discussion on wildcat cartridges. The .257 Weatherby Magnum came on the scene in 1945. I want a fast 6mm, but don't want a wildcat or have to reload for it. Though it isn't considered a dangerous game gun, the .257 is one of the fastest, flattest-shooting .25s ever designed. The Wildcat Big Bore poster is the 5th member in our cartridge poster series. 30 06 Wildcat Cartridges. Hornady originated the cartridge and has the load with the fastest muzzle velocity. A wildcat cartridge, or wildcat, is a custom cartridge for which ammunition and firearms are not mass-produced. Everywhere I look the … If the .22 CHeetah was an effort to make a reasonable wildcat cartridge, then the .22 Eargesplitten Loudenboomer is a cartridge designed to push the ballistic limits. They do it for a love of guns and cartridges and for the challenge of doing something that’s never been done. Wildcat cartridge Last updated May 28, 2019.243 Winchester Ackley Improved (left) and .243 Winchester (right). This wildcat, based on a .378 Weatherbee magnum, was designed to be the fastest bullet ever fired at … 22 Wildcat Cartridges. An example is Parker O. bullet. With the efficiency that this cartridge offers, shorter than normal barrels will deliver the load! Ammo makers also limit this cartridge’s chamber pressure since there are still so many older Lee-Enfield rifles out there. It is the 378 GNR, the most powerful 375 caliber wildcat cartridge going, second only to the 375 H&H and runs just barely under the 375 H&H. Fredo, we are on the same page. Barrel life was allegedly tens of rounds. Looking for other options. The .22-250 is an excellent cartridge for long-range target and varmint shooting and also has tactical applications. ... “We wanted to create the lightest, fastest production rifle there is. This poster focuses on Wildcat and Proprietary cartridges from the .400" caliber up to .750" caliber. I have rifles chambered in both 6.5 and 6mm Creedmoor (CM) but the 22 CM has captured my attention. … This type of bullet is a rifle cartridge and was created by Winchester and Browning. Get your basic reloading experience with standard cartridges, before attempting to reload for a wildcat and NEVER rely on someone else's reloads. 13.5 grains 4198, 20-grain bullet, 3,450 fps 12.0 grains 4198, 25-grain bullet, 3,120 fps. It’s a necked down .378 Weatherby Magnum. 240 Weatherby? The 250 Savage A.I. It’s a 24-grain NTX bullet with a muzzle velocity of 4,400 fps. Obviously, this is a cartridge that has been designed for long-range big-game hunting (though it will kick a … .338 caliber bullets have tremendous sectional densities—grain for grain, they drive deeper into animals than most others. I have a bolt gun in 6x45, which was my first wildcat, with a 12 twist and with 70gr bullets, Benchmark or H322 it will shoot less than .5 MOA consistently all day out to 200 yes. The .17 Rem. Not surprising when you stop to consider this proprietary powerhouse has a case length of 2.905 inches and a 125-grain (water) capacity when compared with the .338 Win. In 1963 the Browning Arms Company made history. Using 90gr to 100gr deer hunting bullets ONLY, what 223 cartridge case based variant with a 2.260" OAL has the potential for the highest velocity from a 9" barrel? So far all I can see is a 25-45 Sharps using a Sierra 90 gr GameKing bullet. These cartridges span the spectrum from modest, efficient rounds to barrel-burning dragons that spew 6.5mm bullets at … The bullet was introduced in 2003 by the Browning Arms Company, Winchester Ammunition and Winchester Repeating Arms company. Roy Weatherby had a special affinity for this cartridge, purportedly taking a cape buffalo with it. Consider this: The .22-250 Rem. Wildcat Rifle Calibers . A wildcat cartridge until just a few years ago, the .338-06 takes .30-06 cartridges to a new level for use against large, heavy critters. Fastest Wildcat Cartridge . is known as one of the fastest, flattest-shooting varmint rounds of all time, yet the 7mm RUM with 140-grain bullet shoots flatter than the .22-250 with 55-grain bullet. My AR in 25-45 Sharps, just a fancy name for 257-223, shoots .5 - .75 MOA consistently as long as I'm not using factory ammo. It will kick you a bit though! This monster was officially introduced in 1998, but Elmer Keith and others had been fooling around with a .338-378 wildcat decades prior. SAAMI recognition takes any former wildcat off the table, like the ultra-popular .280 Remington Ackley Improved , but here’s a list of those I consider cool. is an excellent wildcat. The .22-250 Remington was known for exceptional accuracy and very mild recoil from the start. Consider this: the .22-250 is known as one of the fastest, flattest-shooting varmint rounds of all. This one really ups the ante in the 8.6mm sweepstakes. These cartridges are both necked down 9 mm variants of the 10 mm Auto cartridge though they dimensionally vary. Yet the 7mm Ultra Mag with 140-grain bullet shoots flatter than the .22-250 with 55-grain bullet. Hand loaded with slippery bullets and fired in a strong, modern rifle, the .303 is a great performer. [ARCHIVED THREAD] - Fastest 223 Based Wildcat With Highest Velocity? So let’s get right to it, the operable metric here being muzzle velocity: 2000 fps with a 103-gr., .30-cal. The 250 Savage A.I. This one has taken many elephant and dozens of Cape Buffalo. Answer (1 of 18): The fastest bullet in the world is the Winchester .223 Super Short Magnum. Capitalizing on the wind deflection characteristics and retained energy of the 6.5mm bullets, the Grendel runs surprisingly well from such a short cartridge. 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