For the .300 Norma Magnum, .375 and .408 CheyTac calibers the barrel is 28.3”/72 centimeters long, while for the .338 Lapua Magnum caliber only the barrel measures 27.1”/69 centimeters. The .408 Cheyenne Tactical is based on the .400 Taylor Magnum, which itself is based on a modified .505 Gibbs, necked down to 0.408 inches (10.36 mm). CoH Harrison used it very effectively against the Taliban at around 2500m, and as far as I know, they are all still dead. The very-low-drag bullets are made by Rocky Mountain Bullets in Philipsburg, Montana and have a rebated boattail and a claimed ballistic coefficient (G1 BC) of 0.874.. Kestrel 4500 NV Weather Tracker with Bluetooth, Kestrel 4500NV Weather Tracker with Bluetooth.
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The first shot immediately displayed a good solid `shove` from the gun but nothing at all sharp or painful as long as your eye is well off the scope; gentle giant describes it well. They have some really nice long range rifles on their homepage, make sure …
The common rifling twist rate for this cartridge is 330.2 mm (1 in 13 in), 8 grooves, Ø lands = 10.16 mm (0.400 in), Ø grooves = 10.36 mm (0.408 in), land width = 2.57 mm (0.1 in) and the primer type is large rifle. The 308 is about as low as you want to go on the long range scale. Never know. The THOR 408 is a direct descendant of the EDM Windrunner rifle, which although effective, looked like a collection of parts. I... Yep. Yes, yours is part of the initial issue, as... .275 Rigby was Rigby's moniker for the classic 7x57mm Mauser round. Request Info.
What makes all4shooters.com different?For one thing, it's the journalistic and editorial content we provide, but also the value-added services we offer. However, field testing of this projectile proved it to be completely unstable, and useless at any velocity, or range. Anyone who has seen the film “Shooter” with Mark Wahlberg will recognise the rifle as it is one he used on screen.
regulated countries every rifle cartridge combo has to be proofed at 125% of this maximum C.I.P. Extreme Firearms claimed the G1 BC of the same .408 CheyTac projectile to average 0.945 to 2000 meters and it drops to the low 0.900s to 2800 meters. If so, what were the overall results? Video content provider for John1911-TV. For the .300 Norma Magnum, .375 and .408 CheyTac calibers the barrel is 28.3”/72 centimeters long, while for the .338 Lapua Magnum caliber only the barrel measures 27.1”/69 centimeters. The case is driven back against the bolt face which results in the stretching of the case, particularly the sidewall immediately forward of the web. So for the magic mile (1760 yards) and beyond, where next?
Extra barrel and bolt assemblies will give extra calibres to this gun but is a 338 Lapua really any more acceptable? Americans would define the shoulder angle at alpha/2 ≈ 22.13 degrees. But there is perhaps a more efficient solution than chucking a 750-grain pill at 2800 fps that will combine the surgical ability of the precision rifle with the heavy hitting ability of the 50 BMG!
VS Medien GmbH Römerstrasse 58, 56130 Bad Ems, International contact to all4shooters.com:[email protected], Fabian Fasser, © Copyright 2018 by Fabian Fasser. Re: 338 LM vs. 408 Chey Tac The "ONE" you got.It's paid for.LOL. We also provide the latest news from around the world and everything you need to know about new products and developments relating to your particular passion. In modern solidhead cases, the hardness of the brass is the major factor that determines a case's pressure limit before undergoing plastic deformation. There is a large ejection port on both sides of the action. certified and became an officially registered and sanctioned under the 375 Chey Tac designation.. THOR M408.
Because the .408 CheyTac offers a large and sturdy, pressure resistant cartridge case it has become quite popular among wildcatters. Communication via more effective channels:In printed media, information generally flows just one way.
300-375/408 Cheytac. ... development and production team of the M200 .408 We are pleased to offer the full line of THOR 408 and 375 rifles with quick turnaround and short lead times for custom builds.
I note that there is very little distance in the horizontal axis between the hits. The Balanced Flight/Controlled Spin Projectile bullet patent has been questioned/disputed by the German physicist Lutz Möller. This inevitably reduces the seal of the bullet in the barrel, allowing hot gunpowder gases to reach the sides of the projectile, vaporizing some of the material and depositing it in the bore. CheyTac® Rifles.  It would appear that Mr. Möller did not test this projectile prior to public release whereby the dynamic instability would have been discovered.
Some more explanation about the transient nature of a projectile's G1 BC (it rises above or gets under a stated average value for a certain speed-range regime) during flight can be found at the external ballistics article. regulated countries are currently (2016) proof tested at 550.00 MPa (79,771 psi) PE piezo pressure. The M408 comes standard with a custom Krieger barrel and completely adjustable butt stock. Fire control uses a 2-stage trigger breaking at 2lbs with an AR15-style grip, above this is a 2-position safety lever. I get the chance to shoot some real F1 beasts in this journalism lark and some are a real pain (in more ways than one) but others do fit the bill and show how technology moves on. Figure 14 are the UK-based partner for Thor Global Defence Group and managing Director John had brought this 408 to stretch its legs and reach out there to the looooong targets. Writer for john1911.com. The rifle seems to be a custom build, with lawton action and Lothar Walther barrel built by Bruno Put, the owner of Armeca (France). TCCC Certified medic. is a specialized rimless, bottlenecked, centerfire cartridge for military long-range sniper rifles that was developed by Dr. John D. Taylor and machinist William O. Wordman. (Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) rulings the .408 Cheyenne Tactical can handle up to 440.00 MPa (63,817 psi) Pmax piezo pressure. Has anyone here had experience with a 375/408 Cheytac necked down to .308? Ballistic applications for smart phones work well but nobody wants to waste £5 per shot unnecessarily in the future. Push buttons control height extensions for the large feet that can fold in either direction to aid storage.
The Austrian manufacturer of precision and hunting rifles showcases the new S16 bolt-action rifle and its “small brother”, the K15A match-grade rimfire model. POTD — 408 CheyTac Bullet vs 308 Round. After hearing the first few shots let off, the gun was actually reasonably tame noise-wise so I dropped into position for my first shot. These semi-custom bolt actions are used with other high grade rifle and sighting components to build custom sporting and target rifles. This means where a 50 starts out at the muzzle with 12,000 ft lbs, its smaller competitors overtake it downrange with greater accuracy, avoiding the dreaded transonic flight envelope around the sound barrier for 500-750 more yards.
An example of such a special .375 caliber extreme range bullet is the German CNC manufactured mono-metal 26.44 gram (408 gr) .375 Viking (G1 BC 1.537; this Ballistic coefficient (BC) is calculated by its designer, Mr. Lutz Möller, and not proven by Doppler radar measurements). Monopods are welcome as supporting that weight with muscle and bone alone is hard work! Lapua Ltd. solved this problem when they used the .416 Rigby as the parental case to the .338 Lapua Magnum. With 7500 Ft lbs at the muzzle, it has required the 50 BMG to develop over 12,000 ft lbs to exceed the 408 ballistically and those before you take powder into account! This rifle sets the standard worldwide for special operations teams needing a specialized system capable of hard and soft target interdiction at ranges beyond 2,000 meters. The cartridge delivers accurate (sub-MOA) performance from a sniper rifle. Not trying to take away the honor of these remarkable hits, but can I fire 1000 random rounds at 5000 yards and claim I have the record if I find a hole in the paper? The 375 Cheytac is ballistically even more slippery!
An example of a blown out .408 CheyTac variant is the .408 Baer. The above variations can be explained by differences in the ambient air density used for these BC statements or differing range-speed measurements on which the stated G1 BC averages are based. The butt consist of twin, telescopic steel rods that mounts the length and comb height adjustable sections, a rear monopod is included and certainly needed! on 15 May 2013 ending its status as a wildcat cartridge.. The semi-anatomic support for the weak Increased balance designed to work better with suppressor. The 338 Lapua Magnum is an absolute beauty of a long range calibre but has pretty much passed its accuracy peak by 1500 yards, a 300-grain bullet may extend this a little further. This rifle sets the standard worldwide for special operations teams needing a specialized system capable of hard and soft target interdiction at ranges beyond 2,000 meters. Puts "seasoned", "experts " to shame.
Something like an RCBS Ammomaster II press is needed to take the larger dies and bullets. A 30” fluted Krieger barrel with a 1-13” twist rate slots into the action and is secured by a hand-operable barrel nut in a tubular forend. Darrell needed a JoyPod that wouldn’t sink under a heavy load. In other words, any bullet with appropriate drag behaviour around Mach 1 and mass (distribution) will do exactly what the balanced flight projectile patent states. Tan DuraCoat and black anodizing completes the desert looks on all components. €200 per 100. Energy is retained along with longer supersonic flight duration. Most .408 CheyTac factory ammunition uses solid projectiles or bullets rather than jacketed lead-core bullets, which are common to most other rifle bullets. It's a structural problem created by Congress. The rifle seems to be a custom build, with lawton action and. .50 BMG (left), .416 Barrett (center), .408 CheyTac (right) .408 Cheyenne Tactical Being developed by John D. Taylor and a machinist named William O. Wordman, it was designed to be used with military and law enforcement applications, specifically, in anti-personnel, anti-sniper and anti-materiel roles out to a range of a whopping 2,200 yards (2,000m). Gineste is a French soldier of the 1:st RCA and the date of the record was October 29th 2016. Cheaper to shoot,less recoil,only goes subsonic about 300 yards earlier. Currently (2009) these projectiles are produced by Jamison International, where they are turned on Swiss-type CNC lathes from solid bars of proprietary copper nickel alloy. Calibre: 408 Cheytac (375 also available) Weight: 30 lbs; Scope: Mounting Picatinny rail; Length: 48-54.5” (folded-open) Barrel: 30” Krieger 1-13” twist; Muzzle: Brake Lateral Ported; 3 Comments.
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