| .17 HMR |
20 grain hollow-point .17 HMR rounds | | Type | Rifle | | Place of origin | United States | | Production history | | Designer | Hornady | | Designed | 2002 | | Specifications | | Parent case | .22 WMR | | Bullet diameter | .172 in (4.37 mm) | | Neck diameter | .190 in (4.83 mm) | | Shoulder diameter | .238 in (6.05 mm) | | Base diameter | .238 in (6.05 mm) | | Rim diameter | .286 in (7.26 mm) | | Case length | 1.058 in (26.87 mm) | | Overall length | 1.349 in (34.26 mm) | | Primer type | Rimfire | | Ballistic performance | | Bullet weight/type | Velocity | Energy | | 17 gr | 2550 ft/s
(~777 m/s) | 245 ft·lbf
(~333 J) | | 20 gr | 2350 ft/s
(~716 m/s) | 250 ft·lbf
(~340 J) | | Source: Hornady [1] | .17 Hornady Magnum Rimfire, commonly known as the .17 HMR, is a rimfire rifle cartridge descended from the .22 Magnum. It was developed by necking down the .22 Magnum case to take a .17 caliber (4.5 mm) bullet. Commonly loaded with a 17 grain (1.1 g) bullet, it can deliver muzzle velocities in excess of 2550 ft/s (775 m/s).[2] Image File history File links 17HMR_rounds2. ...
Hornady is a firearm ammunition manufacturer founded by Joyce Hornady. ...
A M4 Carbine just after firing, with an ejected case in mid-air The article titled casing is a disambiguation page. ...
The . ...
This article is about firearms projectiles. ...
The percussion cap or primer was the crucial invention that enabled firearms to fire in any weather. ...
A rimfire is a type of firearm cartridge. ...
A grain is a unit of mass equal to 0. ...
Feet per second is a unit of speed; it expressses the number of feet traveled in one second. ...
Metre per second (U.S. spelling: meter per second) is an SI derived unit of both speed (scalar) and velocity (vector), defined by distance in metres divided by time in seconds. ...
The foot-pound force (symbol: ft·lbf) is an English unit of work or energy from the English Engineering System. ...
The joule (IPA: or ) (symbol: J) is the SI unit of energy. ...
A grain is a unit of mass equal to 0. ...
Feet per second is a unit of speed; it expressses the number of feet traveled in one second. ...
Metre per second (U.S. spelling: meter per second) is an SI derived unit of both speed (scalar) and velocity (vector), defined by distance in metres divided by time in seconds. ...
The foot-pound force (symbol: ft·lbf) is an English unit of work or energy from the English Engineering System. ...
The joule (IPA: or ) (symbol: J) is the SI unit of energy. ...
A rimfire is a type of firearm cartridge. ...
This article does not adequately cite its references or sources. ...
The . ...
“Calibre†redirects here. ...
A grain is a unit of mass equal to 0. ...
Development
 Left: 17 HMR, Right: 22 WMR
 A .17 HMR round (left) compared with a .22 Long Rifle round (right)
 Left: 17 HMR, ctr and right: 25-06 Remington The .17 HMR round is similar to rounds developed by dedicated rimfire wildcatters who worked to create a rimfire cartridge with an exceptionally flat trajectory. These wildcatters were seeking to match the ballistics of the obsolete 5 mm Remington Magnum Rimfire, which was made from 1970 to 1974, and was to that point the fastest rimfire cartridge ever produced.[3] With 5mm (.20 caliber) diameter barrels and bullets being virtually unavailable at the time (the 5mm RMR was the last commercial 5mm round until the 2004 release of the centerfire .204 Ruger), the commercially available .17 caliber became their bullet of choice. The .22 WMR was the logical parent case, as it was also the basis for the 5mm RMR, as it was commonly available and had a far larger and stronger case than the next larger .22 Long Rifle. The .17 caliber wildcats not only met, but far exceeded the 5 mm RMR's velocities and flat trajectory. The accuracy of these cartridges was also quite good. The downrange energy of the 5mm RMR is still superior to both .22 WMR and .17 HMR, however, so there is still potential in the 5mm rimfire for wildcatters. Image File history File links Metadata No higher resolution available. ...
Image File history File links Metadata No higher resolution available. ...
Image File history File links 17HMR_and_22LR_B.jpg‎ Provided by Goldsmith285 I, the creator of this work, hereby release it into the public domain. ...
Image File history File links 17HMR_and_22LR_B.jpg‎ Provided by Goldsmith285 I, the creator of this work, hereby release it into the public domain. ...
Image File history File linksMetadata Download high-resolution version (1492x1640, 421 KB) Qleem 17:28, 25 December 2006 (UTC) from left, 17HMR, and 120gr. ...
Image File history File linksMetadata Download high-resolution version (1492x1640, 421 KB) Qleem 17:28, 25 December 2006 (UTC) from left, 17HMR, and 120gr. ...
A wildcat cartridge, or wildcat, is a custom cartridge for which ammunition and firearms are not mass produced. ...
The 5 mm Remington Rimfire Magnum is an obsolete bottlenecked rimfire cartridge introduced by Remington Arms Company in 1970. ...
This article lists firearm cartridges which have a bullet in the 5mm (.197 in) caliber range. ...
Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ...
The . ...
“.22†redirects here. ...
Hornady, in conjunction with Marlin Firearms and Sturm, Ruger, followed much the same path. With the .22 WMR case as the starting point, a simple barrel change was sufficient for most .22 WMR firearms to chamber the new cartridge. In 2002 the first rifles and ammunition began appearing on the market, and the .17 HMR was an instant hit. While the ammunition was relatively expensive due to the high-performance .17 caliber bullets used, it was still cheaper than most centerfire ammunition. The availability of moderately priced and accurate firearms from Marlin and Ruger (leaders in the rimfire rifle market) plus the backing of a major ammunition maker allowed the .17 HMR to quickly gain momentum. Other makers of firearms and ammunition soon introduced .17 HMR offerings.[2] Marlin Model 60 22LR rifle manufactured in 1982 The Marlin Firearms Company of North Haven, Connecticut manufactures Marlin Rifles. ...
Rugers . ...
For other uses, see Rifle (disambiguation). ...
A centerfire cartridge is a cartridge in which the primer is located in the center of the cartridge case head. ...
A rimfire is a type of firearm cartridge. ...
Availability There is a widening range of ammunition available for the HMR. The bullets generally weigh from 17 to 20 grains, and come in designs such has as hollow points, soft points, and full metal jackets. The terminal ballistics of the lightweight expanding bullets limit the .17 HMR to small game animals and varmints. .17 HMR ammunition is less common and more expensive than the .22 caliber rimfire rounds, but this is changing as the popularity of .17 HMR rifles gathers momentum. In the UK, the .17 HMR round is favoured by many Police firearms licensing departments over the .22 LR, as due to its fragmenting bullet it is less prone to ricochet.[citation needed] .357 Magnum rounds. ...
A soft point bullet is a lead bullet with a copper or brass jacket that is left open at the tip, exposing some of the lead inside (compare to hollow point bullet). ...
Terminal ballistics, a sub-field of ballistics, is the study of the behavior of a projectile when it hits its target. ...
Varmint rifle is an American English term for a relatively small-caliber firearm (or even a high-powered air gun) primarily used for varmint hunting—killing animals such as coyotes and other vermin considered to be farm pests. ...
.17 HMR rifles and ammo have continued to sell briskly. Following the success of the .17 HMR, the .17 Hornady Mach 2, or .17 HM2, was introduced in early 2004. The .17 HM2 is based on the .22 LR case necked down to .17 caliber using the same bullets as the HMR but at a somewhat lower velocity The . ...
Ammunition availability A growing number of companies offer .17 HMR ammunition. CCI Ammunition loads all of the .17 HMR ammunition for the CCI, Federal Cartridge, Hornady, and Remington brands. However, the ammunition is loaded with different bullets to different specifications.[4] Ammunition is also available from Winchester and Sellier & Bellot. Located in Anoka, Minnesota, Federal is a wholly-owned subsidiary of Edina, Minnesota-based ATK, Alliant Techsystems. ...
Hornady is a firearm ammunition manufacturer founded by Joyce Hornady. ...
Remington Arms is a major American manufacturer of rifles and shotguns, as well as other firearms, ammunition, and all-terrain vehicles. ...
The Olin Corporation (NYSE: OLN) is a major manufacturer of copper alloys (through subsidiary Olin Brass), ammunition (through the Winchester Ammunition), and chlorine and sodium hydroxide (Olin Chlor-Alkali Products). ...
Sellier & Bellot is a Czech ammunition manufacturer. ...
See also This article lists firearm cartridges which have a bullet in the . ...
Common handgun cartridges. ...
Left to Right: .17 HM2, .17 HMR, .22LR, .22 WMR, .17 SMc, 5mm/35 SMc, .22 Hornet, .223 Remington, .223 WSSM, .243 Winchester, .243 Winchester Improved (Ackley), .25-06, .270 Winchester, .308, .30-06, .45-70 Govt, .50-90 Sharps From left to right: .50 BMG, 300 Win Mag, .308...
References Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ...
is the 268th day of the year (269th in leap years) in the Gregorian calendar. ...
Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ...
is the 268th day of the year (269th in leap years) in the Gregorian calendar. ...
Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ...
is the 268th day of the year (269th in leap years) in the Gregorian calendar. ...
Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ...
is the 268th day of the year (269th in leap years) in the Gregorian calendar. ...
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