.204 Ruger

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Template:Short description Script error: No such module "Unsubst". Script error: No such module "Unsubst".

Script error: No such module "Infobox".Script error: No such module "Check for unknown parameters". The .204 Ruger / 5.2x47mm is a centerfire rifle cartridge developed by Hornady and Ruger. At the time of its introduction in 2004, the .204 Ruger was the second-highest velocity commercially produced ammunition and the only centerfire cartridge produced commercially for bullets of .204 inch/5 mm caliber.[1]

Characteristics

The .204 Ruger was developed from the .222 Remington Magnum, which has the second-largest case capacity in the family that began with the .222 Remington.[2] Only the European 5.6×50mm Magnum is larger, which itself is a lengthened version of the .222 Remington Magnum. The .222 Remington Magnum provides about 5% more usable (below the neck) case capacity than the most popular member of the family, the NATO 5.56×45mm (.223 Remington). To make the .204 Ruger, the .222 Remington Magnum case was necked down to .204 inches (5 mm) and its shoulder moved forward and angle increased to 30 degrees.[3] Bullets available in .204 caliber range from 24 to 55 grains (1.55 to 3.56 g).[4] The Hornady factory load is listed at 4,225 ft/s (1288 m/s) with a Script error: No such module "convert". bullet.[5] To achieve these velocities, the factory uses a proprietary powder composition known internally as SMP746, specially formulated by Primex, and, as of 2013, not available to handloaders. The propellant features a de-coppering agent (bismuth pellets) that helps prevent fouling. Reloading data from Hornady, using commercially available powders, indicate velocity peaking at just under Script error: No such module "convert". with the Script error: No such module "convert". bullet in longer barrels.

Development

Script error: No such module "Unsubst". The .204 Ruger was the second Ruger-named cartridge produced by a partnership between Ruger and Hornady, the first being the big bore .480 Ruger revolver cartridge introduced in 2003 for the Super Redhawk. With the backing of a major gunmaker and a major ammunition company, the round was an instant success, with other ammunition makers and firearms makers quickly adding the new chambering. Ruger's initial offerings included the bolt action Model 77 MKII, and the single shot Ruger No. 1, and Hornady offered loadings with Script error: No such module "convert". bullets.

The .204 Ruger has proven to be a very accurate and efficient cartridge: an early tester reported 1/2 MOA groups at Script error: No such module "convert". with the Hornady loads and a Ruger No. 1 varmint rifle. The first cartridge in the family, the .222 Remington, was a top benchrest shooting cartridge for many years after its introduction.

The .204 Ruger was intended primarily for varmint rifles, which require bullets with flat trajectories but not much mass or kinetic energy. The .204 was "splitting the difference" between the popular .224 varmint rounds such as the .220 Swift and .22-250 Remington, and the tiny .172 caliber rounds such as the .17 Remington and the .17 HMR. The resulting cartridge provides somewhat higher velocities than any of these, giving a maximum point blank range of more than Script error: No such module "convert"..

Velocity

Ruger's claim to being the velocity king with the .204 was based on two points.

First, no other high-performance .20 caliber cartridge was commercially produced. Second, the ammunition used to achieve the Script error: No such module "convert". was available only from Hornady using a special powder not available to the general public.[6]

Handloaders typically achieve velocities more in the area of Script error: No such module "convert". using a Script error: No such module "convert". bullet.[7] Handloads using Script error: No such module "convert". bullets in other commercial cartridges such as the .22-250 Remington also achieve velocities similar to those of the .204 Ruger. The advantage of the .204 Ruger is that it achieves these velocities with less powder, less recoil, and less heat than the larger cartridges. The .204 Ruger has a maximum range of approximately Script error: No such module "convert".. Hornady now offers a 24-grain lead free cartridge that claims 4,400 ft/s from a 26-inch barrel.[8] However, Hornady's 35 gr NTX .22-250 claims 4,450 ft/s from a 24-inch barrel.

.204 Ruger 32 GR V-MAX 83204 Muzzle 100 yds 200 yds 300 yds 400 yds 500 yds
Velocity/energy
(ft/s) / (ft-lbs)		 4,225/1,268 3,645/944 3,137/699 2,683/512 2,272/367 1,899/256
Trajectory (inches) -1.5 0.6 0.00 -4.1 -13.1 -29.0
.204 Ruger 40 GR V-MAX 83206 Muzzle 100 yds 200 yds 300 yds 400 yds 500 yds
Velocity/energy
(ft/s) / (ft-lbs)		 3,900/1,351 3,482/1,077 3,103/855 2,755/674 2,433/526 2,133/404
Trajectory (inches) -1.5 0.7 0.00 -4.3 -13.2 -28.1
.204 Ruger 45 GR SP 83208 Muzzle 100 yds 200 yds 300 yds 400 yds 500 yds
Velocity/energy
(ft/s) / (ft-lbs)		 3,625/1,313 3,188/1,015 2,792/778 2,428/589 2,093/438 1,787/319
Trajectory (inches) -1.5 1.0 0.0 -5.5 -16.9 -36.3

See also

References

<templatestyles src="Reflist/styles.css" />

  1. ↑ Script error: No such module "citation/CS1".
  2. ↑ Script error: No such module "citation/CS1".
  3. ↑ Script error: No such module "citation/CS1".
  4. ↑ Script error: No such module "citation/CS1".
  5. ↑ Script error: No such module "citation/CS1".
  6. ↑ .204 Ruger by Chuck Hawks
  7. ↑ .204 load data at Hodgdon Script error: No such module "webarchive".
  8. ↑ Script error: No such module "citation/CS1".

Script error: No such module "Check for unknown parameters".

Further reading

External links

Template:Ruger Template:Hornady Template:Intermediate cartridges Template:222remderivatives

Retrieved from "http://debianws.lexgopc.com/wiki143/index.php?title=.204_Ruger&oldid=2217783"