This is another “improved” version of the 375 H&H Magnum
257 ACKLEY IMPROVED
223 SCORPION
Based on the .30M1 case and resembles a 5.7mm MMJ, but with a more gentle shoulder. According to Dan Watters on THE GUN ZONE, the 223 Scorpion was the brainchild of Californian gunsmith Ken Bucklin way back in 1945. The above specimen is a recent remake...
375 A–SQUARE MAGNUM
The 375 A-Square is based on a 378 Weatherby case slightly shortened and the shoulder moved slightly forward and with a 35° shoulder as opposed to the double radius of the 378 WBY. It was developed around 1975 by the A-Square Company and attempted to duplicate 378...
375 – 404 SAEED
This cartridge dates from around 2007 and is based on the 404 Jeffery case necked to .375. It was developed by Saeed al-Maktoum of Dubai.
256 WINCHESTER MAGNUM
The .256 Magnum is a varmint and predator cartridge introduced by Winchester in 1960. In 1961 Ruger brought out the Hawkeye single shot pistol for the .256 Magnum. The next year (1962) Marlin chambered their Model 62 Levermatic rifle for the new Winchester cartridge....
223 PPC
One of the predecessors to the 22 PPC, this one being based on the 223 Remington case, with a longer shoulder and steeper neck
375 ACKLEY IMPROVED
This is one of a variety of improved (Ackley) designs based on the 375 H&H case, this version having a 40° shoulder.
375 3K MAGNUM
Another design similar to the 375 Viersco Magnum for long to ultra-long range shooting to push a 375 bullet above 3,000 fps.
256 NEWTON
The .256 Newton is a high-velocity rimless cartridge and was developed by Charles Newton in 1913 in conjunction with the Western Cartridge Company. It is a 30-06 Springfield cartridge shortened and necked down to .264" with a different shoulder angle. It resembles...
223 ACKLEY IMPROVED
Based on the 223 Remington case with a 40° shouder
370 SAKO MAGNUM
This is another joint development between Sako and Federal that started with the introduction of the 338 Federal. The 370 Sako is the American version of the 9.3x66 SAKO that is a relatively popular cartridge in Europe. It is balistically between the 338 Win Mag and...
37 XC TUBB
The 37 XC (eXtra Capacity) was developed by David Tubb and is the standard 33 XC necked up to .375. The cases at this stage are not properly headstamped and uses the 33 XC case.
366 DGW
The 366 DGW was conceived by David G Walker and is based on the 416 Rigby case necked to .366” (9.3mm) and was developed around 2000 by Judson Bailey from The Workshop in St. Albans, ME. It was developed as a hard hitting medium caliber rifle that will still shoot as...
250 SAVAGE IMPROVED
360 IMPERIAL MAGNUM
The Imperial Magnums .300, .311, .338, .360 and 7mm were introduced circa 1991 by the Imperial Magnum Corporation, Osayoos, British Columbia, Canada after buying the IMPERIAL trademark from Canadian Industries Limited and later IVI (Industries Valcartier Inc.) when...
36 CRISPIN
under construction
222 REMINGTON MAGNUM
The .222 Remington Magnum was a short-lived commercially produced cartridge derived from the .222 Remington. Originally developed for a US military prototype Armalite AR-15 rifle in 1958, the cartridge was not adopted by the military, but was introduced commercially...
250 SAVAGE
358 YUKON
The 358 Yukon is based on the 300 Remington Ultra Magnum case shortened to 2.56" and was designed to function in standard length bolt actions.
358 WINCHESTER
Two years before the adoption of the 7.62 NATO in 1954 Winchester had already applied for and received the rights to market the new round commercially as the 308 Winchester which turned out to be one of Winchester’s success stories, Shortly afterwards in 1953 they...
250 HEAVY EXPRESS SHORT ACTION MAGNUM
- info to follow -
222 REMINGTON
Reworked 5.56 cases and loaded by Ordnance Developments Ltd., Lowe Hutt, New Zealand for the New Zealand Forest Service. The Herters case with the dots on both sides were produced in Sweden by both Svenska Metallverken (often with SM primer) and later Norma...
358 SHOOTING TIMES ALASKAN
The 358 STA dates from 1992 and was designed by gun writer Layne Simpson and is based on the 8mm Remington Magnum necked up to .358cal. but less body taper than the 8mm Rem Mag cartridge as well as a sharper 35° shoulder.
220 WEATHERBY ROCKET
Modern reproduction for collectors by OPM in South Africa
358 SCOVILL
under construction
25-264 WINCHESTER
Sort of an improved version of the 264 Win Mag, necked to .25 cal.
358 JDJ
The 358 JDJ was designed by JD Jones of SSK Industries and is based on the 444 Marlin case.
220 SWIFT
The .220 Swift was developed by Winchester and introduced in 1935. It was the first factory loaded rifle cartridge with a muzzle velocity of over 4,000 ft/s (1,200 m/s).[
358 HOOSIER
This is effectively a shortened 358 Winchester in order to comply with Indiana hunting regulation that limit the length of the cartridge to 1.800"
25-45 SHARPS
358 HAWK
The 358 Hawk is one of a series of 11 cartridges designed by Bob Fulton and Fred Zeglin during the late 80’s. The .358 is based on the 30-06 case necked up to .358 in.
220 HOWELL
358 ENTERKIN MAGNUM
One of two cartridge designs (the other being the 375 Enterkin) and was the brainchild of the late Col. Lawrence Gene Enterkin during the late 1960’s who used to own the Powder Horn gun shop in Cusetta GA. The 358 Enterkin is based on the 300 Weatherby case necked up...
25-36 MARLIN
358 BELLM
Based on the 444 Marlin case, the 358 Bellm was developed by Don Shearer, Littleton, CO. and mainly for use in T/C Contenders.
2-R LOVELL
358 BARNES-JOHNSON EXPRESS
- info to follow -
25-35 WINCHESTER
The .25-35 Winchester, or WCF (Winchester Center Fire) was introduced in 1895 by Winchester for the Winchester Model 1894 lever action rifle. The case was based on the .30-30 cartridge.
25-35 ACKLEY IMPROVED
Very old wildcat that was already offered by Ackley in 1941 as a standard design to be used in re-barrelled 22 Savage rifles when it became illegal to hunt with the 22 Savage in many US states. It gave hunters an affordable alternative for single shot and...
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
358 BARNES SUPREME
This is the same as the rest of the Barnes Supreme series with a full length magnum case, minimum taper and a sharper shoulder.
22-3000 GRIFFIN & HOWE
358 APOLLO MAGNUM
Old wildcat dating from the mid 60’s and is based on the 300 Win Mag necked up to .358 cal. and is also known as the 358/300 Win Mag. From the Firearms Forum it states that the .358 Apollo is stamped 358/300 HARP with the rifles made by Harrison Taylor Harp from...
25-25 STEVENS
GREENER MULTI-BALL
22-284 WINCHESTER
This is the 6.5-284 Win case necked down to .22cal. that was developed by Callum Ferguson and is capable of reaching 5,000 fps
356 WINCHESTER
The 356 Winchester was introduced in 1982 for their Model 94 XTR lever action rifle and is basically a rimmed version of the 358 Winchester that Winchester launched in 1955. It never gained any loyal following and Winchester ceased production of the M94 XTR altogether...
22-250 REMINGTON
The 22-250 cartridge has a long and rich history with century-old roots, and the fact that it remains popular today bears witness to its fine design – and a bit of good fortune. Way back in 1915, the 250 Savage made its appearance on the shooting scene. Designed by...
25-20 WINCHESTER CF
22-250 ACKLEY IMPROVED