Developed around 1952 by PO Ackley
Cartridges
17 ALTON JONES SCORPION
17 COOPER CENTRE FIRE MAGNUM
Introduced in 1992 and was originally designed by Mike Hill. Dan Cooper (President of Cooper Arms) further refined the cartridge and chambering to put it into production in the Cooper Model 38 action. The 17 CCM is a necked down 22 CCM and was designed for varmint...
17 DARDICK TRIPLEX
Experimental triplex round from Dardick during the 1950’s to early 1960’s. The idea was to increase hit probability with a three round burst.
17 GARIN
New line of 5 cartridges based on the 30 M1 case. From the website: The Garin SureStrike System is a complete line of five highly efficient and accurate cartridges designed for varmint, small game and target pursuits. Differing only by specific neck diameter and...
17 HORNET
17 JAVELINA
Designed by Paul Marquart of A&M Gunshop, Prescott AZ, in 1958 and based on the 222 Remington case
17 KILLER BEE
17 LIBRA
Designed as a small hunting/sport shooting rifle, but also with an eye to becoming a semi-auto or full auto PDW (Personal Defense Weapon). On the website it is claimed that it is able to penetrate “steel board” at 10m, but no mention is made of the thickness of the...
17 OTTR
On Target Technologies Radius Based on the 17 Remington case. As can be seen on the cartridge, the shoulder has a concave shape that apparently improves accuracy.
17 PEE WEE
17 REMINGTON
Introduced by Remington in 1971 but never gained a great following.
17 REMINGTON FIREBALL
In 2007 Remington Arms introduced a new rifle cartridge based on their 221 Fireball necked down to 17 caliber. Aptly named the 17 Remington Fireball, it is their version of the 17 Mach IV with minor changes from the original design in some areas.
17 RIMMED LIBRA
This is also based on the 22 Hornet case and is the sporting counterpart of the 17 Libra. It was designed for use in small break open rifles.
17 TUBA MK.1
By Zac Weighman. The idea is to get no residual powder left after firing
17–222 MAGNUM
Popular wildcat from the 1960's. The late editor of Rifle and Handloader magazine, Dave Wolfe has been credited with the design of the 17-222 Magnum, although there were different variations on the same idea.
17–223 ACKLEY IMPROVED (30°)
17.5 X 28R DANISH SNIDER
One of the concepts that followed from the defeat of Napoleon in 1815 was the beginning of a new movement called nationalism that shaped most of Europe in the years that followed, which also fanned the flames in Denmark and the German Confederation. In early 1848...
17.5 X 29R DUTCH SNIDER
In 1867 the Dutch military authorities, by Royal Order dated 24 January 1867, decided to modify their existing .69 (17.5mm) muzzle-loading percussion rifles to breech loader by using the Snider side-hinged action. These rifles remained in service only for a very...
17/221 IMP
In the late 1960’s the Air Force Armament Laboratory began work on an improved aircrew survival weapon designed to be lethal yet small and lightweight. Colt Industries was given a contract to develop a weapon using the ’stockless rifle’ concept. The...
17/222 FRANKFORT ARSENAL EXPERIMENTAL
Assumed to be part of the Cal .17 development program. This is one of the cases from probably the late 60’s that were found at Frankfort Arsenal in a commercial 222 REM 20 round box. There is no other info available as to the exact tests these were used in....
17/223 FA-T 210 (AMA 4.32×45) (SBR)
Dummy loading with brass case, GMCS bullet and blackened primer. Case filling is an inert salt to simulate the correct weight. The US Army instituted the Serial Bullet Rifle (SBR) Program in 1965 in an attempt to develop a high velocity, low recoil...
18 HOMOLOGOUS (PROJECT SALVO)
Ballistics Research Lab at Aberdeen Proving Grounds prepared a study entitled "An Effectiveness Study of the Infantry Rifle" early in 1952. Small Caliber High Velocity (SCHV) rounds were developed with the idea in mind that lightweight projectiles fired...
18mm FRENCH TABATIèRE
As discussed before, the US Civil War was considered the turning point in history that ushered in a new era in “modern” warfare. Most importantly, it rendered the muzzle loading rifle obsolete and heralded in the era of the self-contained breechloading cartridge....
18mm MILBANK-AMSLER
The Swiss also followed events in America during their Civil War with great interest and together with all the other European Nations, realised that the muzzle loading rifle fitted in the same category as the dinosaur and the breech loading rifle was the way of the...
19 CALHOON BADGER
This is the second in the series by James Calhoon. This version is based on the 30 M1 Carbine case.
19 CALHOON HORNET
Third in the series by James Calhoon, this version is based on the 22 Hornet case.
19–223 CALHOON
Necked down and improved version of the 223 Remington case, capable of reaching 4,000fps.
2-R LOVELL
20 BENCH REST
Based on the 6mm BR case that was necked down to .20
20 FIREBALL
221 Fireball case necked down to 20cal.
20 GARIN
New line of 5 cartridges based on the 30 M1 case. From the website: The Garin SureStrike System is a complete line of five highly efficient and accurate cartridges designed for varmint, small game and target pursuits. Differing only by specific neck diameter and...
20 PDK
Designed by Roy Winnett of Minamora Illinois. PDK = Predator Dog Killer
20 PPC
Match cartridge based on the 22 PPC necked down
20 TACTICAL
Designed by Todd Kindler and is a 20-cal cartridge based on the .223 Remington necked down to 20 Caliber, with the shoulder modified to 30° and pushed back. The 2 logos are DAKOTA ARMS and LAPUA
20 TERMINATOR
Based on the 222 REM MAG case, necked to .20 cal with sharper shoulder
20 VAR TARG TURBO
Wildcat designed by Todd Kindler, based on the 222 Remington that was shortened and given some Ackley treatment. VAR = Varmint, TARG = Target
20/577 ALEXANDER HENRY NITRO FOR BLACK POWDER
This was a proprietary cartridge designed by the well known Scottish firm of Alexander Henry. It is a 2 3/4" 20-gauge brass shotgun cartridge that is necked down to accept a .577 bullet. Proof Load
20/577 BLACK POWDER EXPRESS
This is the earlier black powder version of the 20/577 ALEXANDER HENRY, loaded with a lead paper patched bullet with copper tube.
204 JB
204 RUGER
Developed as a joint venture between Hornady (cartridge) and Ruger (rifle). Based on the 222 Remington Magnum case.
215 RWS
See also Metric Military Rifle
218 BEE
219 DONALDSON WASP
The .219 Donaldson Wasp cartridge was developed during the late 1930s by Harvey Donaldson, and is derived from the .219 Zipper case. Once popular amongst match shooters in the 1940s it has since fallen by the wayside in favor of newer developments. It is however held...
219 ZIPPER
PROOF
219 ZIPPER ACKLEY IMPROVED
These are found in different versions and configurations. This is the Ackley version with straight case walls and sharper shoulder.
22 – 20 HARWOOD HORNET
Possibly one of the first wildcats ever made and dates from around the 1890's. It was developed by gunsmith Reuben Harwood and based on the 25-29 Single Shot case
22 – 6mm REMINGTON
6mm Remington case necked to .22 cal. This is effectively the same as the 224 Texas Trophy Hunter with minor shoulder differences
22 BEAST
This is the 6mm HAGAR necked down to .22" with no other changes
22 BENCH REST
This is the 6mm BR case that was necked down to .22cal. It is not the same as the 22 REMINGTON BR that is based on the .308 x 1½ inch Barnes case