Cartridges | Cartridge Collector

Old wildcat developed by Elgin Gates in the 1970's. It is basically a 30-30 Win necked down to 7mm. Similiar to the 7-30 Waters but with a longer neck.

7mm IMPERIAL MAGNUM

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

7mm IHMSA

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

7mm HARVEY MAGNUM

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

Developed in 1987 by Australian Nick Harvey. It is the 6.5mm REM MAG necked up to 7mm with no other changes (http://www.sportingshootermag.com.au/news/shoot-your-own-wildcat)

7mm GRADLE EXPRESS RIMMED

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

This is the rimmed version. There is also a rimless version of this cartridge

7mm GRADLE EXPRESS

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

This is the rimless version of the Gradle Express. It was developed during the 1950's by Roy Gradle of Santa Barbara, CA. The original cartridge was based on a heavily modified 348 Winchester case. Except for the rounded shoulder and slightly longer neck, it nearly...

7mm GIBBS

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

7mm EXPRESS REMINGTON

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

See also 280 REMINGTON under Imperial Sporting Rifle

7mm DAKOTA

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

The 7mm Dakota is one of a line of proprietary magnum hunting cartridges designed by Don Allen and based on the .404 Jeffery case shortened to function in standard (.30-06) length actions.

7mm CANADIAN MAGNUM

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

7mm BULBERRY

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

Designed by Fred Smith of Bulberry Barrel Works, Hurricane, UT. It is based on the 30-30 Win case shortened and necked to .284" with sharper shoulder and less body taper.

7mm BRX

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

"Improved" version of the 7mm Bench Rest

7mm BLACK MESA EXPRESS

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

7mm BENCH REST REMINGTON

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

7 – 47 GIANI SPECIAL

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

Designed by Italian Vittorio Gianni. It is based on the 6.5x47 Lapua necked up to 7mm

7 – 30 WATERS

Mar 29, 2014 | METRIC SPORTING 7mm UP TO 7.99mm, METRIC SPORTING RIFLE

6.5 LEOPARD

Mar 29, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

6.5 JDJ

Mar 29, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

6.5 GRENDEL

Mar 29, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

The 6,5 Grendel dates from around 2002 and was officially launched in 2003, five years before the 6,5 Creedmoor. It is a compact cartridge that was designed to compete with the 5,56 NATO in battle conditions and more specifically to operate from a standard AR15...

6.5 GIBBS

Mar 29, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

6.5 CREEDMOOR

Mar 29, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

From OUTDOOR LIFE, this is the story about the development of the 6.5 Creedmoor.

6.17 SPITFIRE

Mar 29, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

6.17 FLASH

Mar 29, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

This is one of the LAZZERONI range of cartridges. It is one of two that does not have its own headstamp, but the 6.17 Flash uses the SCRAMJET case

6 X 51 BELK & SHANKS

Mar 29, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

Relatively old wildcat cartridge based on a shortened 6mm Remington

6 X 47 LAPUA

Mar 29, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

Match cartridge designed by Robert Whitley in 2007. Not to be confused with the 6x47 Federal, which is the 222 Magnum case opened up to 6mm, the 6 x 47 Lapua is based on the 6.5x47 Lapua case necked down to 6mm. ...

6 X 47 FEDERAL

Mar 29, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

At one stage this development formed part of the US SAW (Squad Automatic Weapon) program, but tests with the 222 Magnum case opened to 6mm with commercial bullets, different propellants and various over-all lengths did not show sufficient progress to...

6 X 45 (US VERSION) (6mm-223 Remington)

Mar 29, 2014 |

Soon after the release of the .223 Remington as a commercial cartridge, shooters began experimenting with the cartridge in an attempt to improve its performance. Several of these experimenters at various time periods necked up the .223 Remington to 6mm as...

22 NIEDNER RIMMED

Mar 28, 2014 | IMPERIAL SPORTING UP TO .249", IMPERIAL SPORTING RIFLE

The .22 Niedner Magnum was developed in the early 1900's by Adolph O. Niedner, famous high-velocity cartridge designer credited among other things for the speedy .25 caliber wildcat that would eventually become standardized by Remington as...

6 X 44 SUPER

Mar 28, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

Also known as the 644 SUPER, this is a match cartridge similar to the 6mm BRX, but with a longer case

6mm – 303 IMPROVED

Mar 28, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

6mm – 284 WINCHESTER

Mar 28, 2014 | METRIC SPORTING UP TO 6.99mm, METRIC SPORTING RIFLE

25 GARIN

Mar 5, 2014 | IMPERIAL SPORTING RIFLE, IMPERIAL SPORTING .25" TO .299"

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...

9.1 X 40R EXPRESS

Mar 1, 2014 | EUROPEAN SPORTING 9mm UP TO 9.99mm, EUROPEAN SPORTING RIFLE

9 X 74R FÖRSTER

Mar 1, 2014 | EUROPEAN SPORTING 9mm UP TO 9.99mm, EUROPEAN SPORTING RIFLE

This was a type of a prototype round for the larger 74mm case length cartridges, of which the 9.3x74R is still popular today. The 9x74R was introdced around 1900, but was not listed in the 1904 catalogue, in all probability because of the introduction to the larger...