Jdj cartridges

Crafted from a 20×102mm Vulcan cannon case, shortened and necked up to fit a .950 inch (24.1 mm) bullet, the .950 JDJ is a cartridge that redefines large caliber. The projectiles for this ...

HP ink cartridges are an essential component of any HP printer. Whether you’re a seasoned printer user or a beginner, knowing how to install these ink cartridges correctly is cruci...I would suggest .309 JDJ data as a starting point, then work up in the Encore. .30 Bellm is a sawed off .444 Marlin case 1.395″ long necked to .30 caliber, designed specifically for Illinois handgun deer hunting, which is restricted to cartridges 1.4″ long or less, must be .30 cal. or larger, and produce at least 500 ft/lbs muzzle energy ...REPLICA 950 JDJ” Head-Stamp. May have minor tool marks, and need polishing with a brass cleaner. Please Note;This item is in Rifle, Wildcat and Dummy Cartridge sections. History of the ..950 JDJ Cartridge: This huge monolith of a cartridge was developed in 1996 by J.D. Jones with SKS Industries making a few rifles which weighed over 100 pounds.As illustrated in Western Powders Handloading Guide Edition 1 and Hornady Handbook of Cartridge Reloading 9th Edition, several powders work nicely in the 6.5 JDJ. For many …Best-In-Class .416 Dangerous-Game Cartridges. The various .416-bore cartridges offer an ideal balance of performance on dangerous game. In the world of cartridges that can stop anything, the .416 Rigby, .416 Remington Magnum, and .416 Ruger occupy a middle ground. They possess neither the shocking quantities of …Oct 6, 2022 · The .950 JDJ Bolt Action is a single shot rifle that needs has a fully enclosed receiver so the bolt needs to be removed in order to insert the cartridge much like some older sporting 50 BMG rifles. “Manufactured by SSK Industries, this enormous rifle pushes the envelope in size, raw power, and rarity. This rifle is designed to fire a ... 1773. Remarks: maximum load; COL: 2.970". .375 JDJ (Hodgdon Pistol Data) reloading data with 20 loads. Using bullets from Sierra FP, Hornady FP, Hornady SP, Hornady RN. Powders include Hodgdon.8 Apr 2024 ... In today's video we have some fun with the 950 JDJ Fat Mac, the most powerful rifle in the world! I hope you enjoy the video and thanks for ...

The 950 JDJ bullet generates a Recoil Impulse of 200 lbs/ft, or about 13 times the recoil energy of a .308 Winchester - Big Kick! Skip to content. ... Probably one of the biggest cartridge in the world is the .950 JDJ. It is .95 inches in diameter, and weighs a stout 3600 grains (8 ounces, ...Meet the .950 JDJ. When it comes to a rifle cartridge, nothing is larger than the .950 JDJ, which uses 240 grains of powder to push a 2,400-grain bullet at 2,100 feet per second (FPS). not only the 6.5mm JDJ, but the 6.5mm JDJ x 30 and the 6.5mm JDJ #2. In addition, he has created the 6.5mm Whisper, a cartridge with quite interesting subsonic performance. The 6.5mm JDJ is a cartridge with excellent long range (up to 300 yards) smaller big game handgun hunting potential. Based on the 225 Winchester case, it The AMMO our Partners' sell is loaded with a BULLET that is designed and ... 375 JDJ Your Rating. Quality. 1 star 2 stars 3 stars 4 stars 5 stars. Price. 1 star 2 ...Rifles chambered for the .950 JDJ are themselves behemoths, with weights ranging from 85 to 110 pounds, depending on configuration, and feature extraordinarily thick Krieger barrels equipped with massive 18-pound muzzle brakes. The rifles’ exceptional size and cost—the rifles themselves can fetch around $8,000, and each loaded cartridge ...

As its name implies, rifles chambered for the cartridge have a bore diameter of 0.950 in (24.1 mm), which would normally classify them as Destructive Devices in the United States However, SSK sought and received a "Sporting Use Exception" to de-regulate the rifles, meaning they can be purchased like any other Title I rifle by a person over age 18 with no felonies on their criminal record.Cartridge Collector > Cartridges > IMPERIAL SPORTING RIFLE ... 358 JDJ. The 358 JDJ was designed by JD Jones of SSK Industries and is based on the 444 Marlin case.The .950 JDJ (shown here next to 5.56mm and 9mm cartridges) was based on the 20x110mm Vulcan Cannon cartridge, shortened, and necked up to match a .950 caliber (24.1mm) cast lead bullet. The original loading was a 2600 grain (168g) cast bullet moving at 2200 fps (670m/s), for a whopping 28,000 foot-pounds of muzzle energy.8 Apr 2024 ... In today's video we have some fun with the 950 JDJ Fat Mac, the most powerful rifle in the world! I hope you enjoy the video and thanks for ...From the data I have on these 3 cartridges it looks like the 7X30 JDJ (aka 7-30 Waters Improved) will do anything the other two cartridges will do in a Contender but with less powder and less recoil. If you were going to have my barrel rechambered for a 7mm Cartridge which would be your choice and why.I would suggest .309 JDJ data as a starting point, then work up in the Encore. .30 Bellm is a sawed off .444 Marlin case 1.395″ long necked to .30 caliber, designed specifically for Illinois handgun deer hunting, which is restricted to cartridges 1.4″ long or less, must be .30 cal. or larger, and produce at least 500 ft/lbs muzzle energy ...

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.950 JDJ cases are approximately 70 mm in length, and are based on a 20x110mm case shortened and necked up to accept the .950 in (24.1 mm) bullet. Projectiles are custom-made and most commonly weigh 3,600 grains (230 g) which is 8.2 oz. or over half a pound. This piece is pretty big. 2x2x6.6.5 JDJ The 6.5 JDJ is one of those rare cartridges that delivers a level of performance that seems all out of proportion to its size, appearance, and recoil. This mild-mannered little number has been used to take Rocky Mountain elk and even African antelope as large as sable and greater kudu, but it is seen at its best when used on deer-size game.JDJ LINEUP OF CARTRIDGES - 01/16/2018 7:25 AM. JD Jones developed I believe the most successful line of "wildcat" cartridges for the Contender which turned the handgun hunting world around setting it full speed ahead. Basically he came up with the "maximum yet safe" cartridge in about every caliber for the Contender package, developed several ...Here is our comprehensive reference chart showing which cartridges use which shell holders from the various manufacturers like Lee, Lyman, RCBS and Hornady. We decided to include multiple brands of shell holder, so that if your store doesn’t for example sell Hornady shell holders or the one you are looking for is sold out and you …Nov 7, 2017 · The humongous .950 JDJ rifle is made by SSK Industries. One shown in the video is the serial number 1 of very few such rifles ever made. The creator of both the rifle and the cartridge is J.D. Jones, the founder of SSK Industries and the famous wildcat cartridge designer mostly known for designing the JDJ and Whisper families of cartridges.

JD Jones’ .950 JDJ cartridge is a generally described as the largest sporting rifle cartridge ever produced, producing more energy than even the 4-bore cartridges that match it in bore diameter. Only three of these rifles were made, and the original loading was a 2600 grain (168g) cast bullet moving at 2200 fps (670m/s), for a …Jan 16, 2018 · JDJ LINEUP OF CARTRIDGES - 01/16/2018 7:25 AM. JD Jones developed I believe the most successful line of "wildcat" cartridges for the Contender which turned the handgun hunting world around setting it full speed ahead. Basically he came up with the "maximum yet safe" cartridge in about every caliber for the Contender package, developed several ... Crafted from a 20×102mm Vulcan cannon case, shortened and necked up to fit a .950 inch (24.1 mm) bullet, the .950 JDJ is a cartridge that redefines large caliber. The projectiles for this behemoth weigh in at a staggering 3,600 grains, or 8.2 ounces—over half a pound of pure stopping power. The result is a muzzle energy of 38,685 foot-pounds ...List of Rifle Cartridges. Submitted by admin on November 22, 2009 - 7:10pm. ... .309 jdj.30-06 JDJ.300 Dakota.300 ICL Grizzly.300 Lapua Magnum.300 WhisperThe Different 9.3mm Cartridges. By Lukas Schulte. 9.3x62mm, 9.3x74R, and 9.3x72R. The 9.3 (.366-inch) diameter is one of the most versatile calibers for hunting bullets. Loaded appropriately in a variety of different cartridges, .366-inch bullets are a great option for game from small antelope and to moose, eland, even buffalo, and …Nov 7, 2017 · The humongous .950 JDJ rifle is made by SSK Industries. One shown in the video is the serial number 1 of very few such rifles ever made. The creator of both the rifle and the cartridge is J.D. Jones, the founder of SSK Industries and the famous wildcat cartridge designer mostly known for designing the JDJ and Whisper families of cartridges. <NEW> List of Cartridges by Powder; Cartrige Powder Recommendations; Powder Burn Rate Chart; Primer Manufacturer Chart; Shellholder Chart; Bullet Abbreviations; User Loading Data. ... 6.5 mm JDJ - Published Manufacturer Loading Data Recipe Type: Pistol . Bullet Weight: ALL. 85 gr. 100 gr. 120 gr. 129 gr. 140 gr . Powder: ALL.When Nosler claimed the title of fastest 6.5mm factory cartridge, Weatherby responded with the 6.5-.300. As you’ve guessed, it’s a .300 Wby. necked down to 6.5mm. With massive propellant capacity in that full-magnum-length case, the 6.5-.300 Wby. drives bullets with amazing speed.To replace a Pfister cartridge, start by turning off the water supply and opening the faucet to drain out any remaining water. Remove the handle, valve adapter and cartridge. Slot ...JD Jones’ .950 JDJ cartridge is generally described as the largest sporting rifle cartridge ever produced for arguably the strongest gun in the world for sporting purposes. Most Powerful Guns from J. D. Jones. Gunmaker, cartridge designer, and SSK Industries founder J. D. Jones forged a name for himself with quality hunting arms and ammunition.375 JDJ was designed by J.D. Jones of SSK Industries in 1978 as a handgun hunting wildcat cartridge. By the term “wildcat”, we mean rounds that are traditionally very custom rounds with little mainstream production. The 375 JDJ may still be considered a Wildcat round due to its low production, but is one of the more popular wildcats available.Pages in category "JDJ cartridges" The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes. 0–9. 14.5mm JDJ.30-06 JDJ.950 JDJ This page was last edited on 2 July 2015, at 20:34 (UTC). Text is available under the Creative ...

In a standard 280 case (sized), seat a jacketed bullet hard against the rifling (so that the gun will just close). The correct powder charge is about 5 percent below the maximum SSK-recommended load. J.D. Jones recommends 140-grain bullets for big game hunting applications on smaller species and bullets up to 175 grains on larger species.

The cartridges for sale are custom made from 20 Vulcan cases and the finished cartridge is 5″ in overall length, no powder, and an old fired spent electric primer. The head-stamp reads “REPLICA .950 JDJ, and the projectiles are made from solid brass (left projectile) or solid aluminum (right projectile);your choice .The 375 JDJ was designed by J. D. Jones of SSK Industries in 1978 as a Wildcat Cartridge, formed from the 444 Marlin “Parent” cartridge used in the custom JDJ barrel for the T/C Contender. The 375 JDJ was a “Wildcat” cartridge, until 2004, when Thompson Centerfire (T/C) marketed this caliber as the “Hand Cannon”, for T/C Contender ...Carpe Diem. 772 posts · Joined 2005. #7 · Aug 30, 2021. The 7-30 JDJ was named that because….it is based on the 7-30 Waters case. The .444 case was used for appropriate calibers greater than 7mm, smaller ones were usually on the .225 Winchester case.These large game animals may weigh over 1,000 pounds in some cases. They have large, stout muscle groups and heavy bone structure. Choosing the right cartridge will insure a humane demise and freezer full of meat. Encore Handgun. Mark’s Encore in .375 JDJ with Hornady bullets is his “go-to” big-game-getter.JD Jones' .950 JDJ cartridge is a generally described as the largest sporting rifle cartridge ever produced, producing more energy than even the 4-bore cartridges that match it in bore diamete. Failed to …12 Oct 2023 ... In this video I discuss what a man bun cartridge is and the 5 most man bun cartridges out there ... The 950 JDJ FAT MAC (The World's Most Powerful ...Here you have the 950 JDJ. The case is made of a 20mm Vulcan case shortened to 4 inches and necked up to 95 caliber. It is not considered a destructive device by the ATF. The 950 JDJ came to life in 1996 by JD Jones but sadly is no longer in production. With the individual hand turned bronze bullets costing $10 a piece and a live cartridge ...Cartridges of the World, the most encyclopedic reference of its kind, will note that there are quite a few “JDJ” entries throughout the chapter on proprietary cartridges: the 226 JDJ, 6mm JDJ, 257 JDJ, 6.5mm JDJ x 30, 6.5mm JDJ #2, 270 JDJ, 7mm JDJ, 7mm-30 JDJ, 7mm JDJ #2, 309 JDJ, 8mm JDJ, 338 JDJ, 358 JDJ, 9.3mm JDJ,

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The 700 JDJ was designed by JD Jones from SSK Industries around 1995 and used a 50 cal. case that was shortened and necked to .700 cal.3 Feb 2012 ... Wasn't JDJ known for some very powerful pistol cartridges in the 80s? That is an achievement to make something like that. That bore size is ...February 27, 2014. Ohio -based Firearm and cartridge manufacturer SSK Industries has unveiled their .950 JDJ rifle. Billed as the largest centerfire rifle ever made, only three of …14 Jan 2024 ... In this video I compare the newest and greatest cartridges to the old cartridges ... The 950 JDJ FAT MAC (The World's Most Powerful Rifle!!!).Shoulder angle is 60 degrees, which works fine. Body taper is minimal, similar to Ackley's improved designs. Therefore, this is a maximized version of the 30-06 case. Capacity is a whopping 75 grains of water, which is significantly greater than the 30-06 (about 70). Working pressure is about 60,000 psi, so ballistics are quite impressive.Find in stock 375 jdj ammo from the top online retailers to find the lowest price. Find Bulk 375 jdj ammunition fast and cheap with our ammunition search engine. My Account. Register; Log In; Our Newest Retailers! Shopping Cart: $0.00 now in your cart 0 item(s) Login or sign up for ...JD Jones’ .950 JDJ cartridge is a generally described as the largest sporting rifle cartridge ever produced, producing more energy than even the 4-bore cartridges that match it in bore diameter. Only three of these rifles were made, and the original loading was a 2600 grain (168g) cast bullet moving at 2200 fps (670m/s), for a whopping 28,000 foot-pounds …QUALITY CARTRIDGE BRASS 6.5 JDJ UNPRIMED 20/BAG. Item #: QC65JDJ. Price: $48.25. $2.41 per piece. Shipping: One flat fee of $12.95 per online order. Exclusions apply. Click for details.QUALITY CARTRIDGE BRASS 6.5 JDJ UNPRIMED 20/BAG. Item #: QC65JDJ. Price: $48.25. $2.41 per piece. Shipping: One flat fee of $12.95 per online order. Exclusions apply. Click for details..375 JDJ - Published Manufacturer Loading Data Shellholders: Lee #119) 7MM Remington SAUM: Introduced in 2001, the 7mm SAUM (Short Action Ultra Magnum), along with its sister cartridge, the .300 Rem. SAUM, was Remington’s entry into the then-new world of short magnums. Basically, this short cartridge can do anything the 7mm Rem. Mag. can do, but it does it in a lighter, shorter, fast-handling rifle while ...When it comes to printing documents, photos, and other materials, having a printer is essential. However, in order to keep your printer running smoothly and producing high-quality ... ….

6.5 JDJ / 6.5mm JDJ Handgun Data (Using Nosler Bullets) reloading data with 36 loads. Using bullets from Nosler. Powders include Accurate, IMR, Alliant, Winchester, Hodgdon, VihtavuoriThe .309 JDJ is one of six cartridges on the .444 Marlin case developed by J.D. Jones of SSK Industries for the Thompson/Center Contender single-shot pistol. Despite its name, it is loaded with .308-inch bullets. Like numerous other cartridges developed by Jones, the .309 JDJ is proprietary, which means he maintains control over distribution of ...6mm JDJ #2: Warning! Notes: Cases formed from new .225 Winchester brass. CCI 200 primers used in all loads. Maximum loads may be excessive in some guns, particularly at higher temperatures. Reduce all loads 10 percent and work up only as pressure signs permit. (Handloader Issue 157)Rifles chambered for the .950 JDJ are themselves behemoths, with weights ranging from 85 to 110 pounds, depending on configuration, and feature extraordinarily thick Krieger barrels equipped with massive 18-pound muzzle brakes. The rifles’ exceptional size and cost—the rifles themselves can fetch around $8,000, and each loaded cartridge ....950 JDJ cases are approximately 70 mm in length, and are based on a 20x110mm case shortened and necked up to accept the .950 in (24.1 mm) bullet. Projectiles are custom-made and most commonly weigh 3,600 grains (230 g) which is 8.2 oz. or over half a pound. This piece is pretty big. 2x2x6.The well-known .375 JDJ wildcat cartridge is an interesting hunting cartridge for the handgun. It’s formed by necking down the .444 Marlin case to a .375. It has a reputation for putting down elephants, Cape buffalo, moose, elk and grizzly bear, as well as wild boar. As one might expect, the .375 JDJ cartridge generates a lot of muzzle blast ...6.5 mm JDJ - Published Manufacturer Loading Data Recipe Type: Pistol.375 JDJ - Published Manufacturer Loading Data Shellholders: Lee #11Contents What Caliber is a 950 JDJ? The 950 JDJ is a custom-made rifle cartridge that measures .950 inches in diameter. It is one of the largest and most powerful rifle calibers in the world, designed by American firearms enthusiast J.D. Jones.The .375 cartridges shown above are all suitable for dangerous game. From left to right: .376 Steyr, .375 Flanged Magnum, .375 H&H, .375 Ruger, .375 Weatherby Magnum, .375 Remington Ultra Magnum, .378 Weatherby Magnum. The .375 has reigned supreme as the world’s most versatile caliber for more than a century. As hunting in both Africa and ... Jdj cartridges, 375-06 JDJ. One of a series of cartridges by JD Jones based on the 30-06 case., The cartridge propels its 3,600 gr (230 g) bullet at approximately 2,200 ft/s (670 m/s). This yields a muzzle energy of 38,685 ft·lbf (52,450 J) [1] and a momentum of 154.1 Newton-seconds, about the same as a 20×102mm Vulcan round., Instagram https://www.instagram.com/jones.beene - @jones.beeneJones Beene, of Knight Rifles & Lead Guitarist for Calling Glory, shooting the largest center-f..., The .950 JDJ large caliber rifle cartridge was developed by American gunsmith and weapon designer J. D. Jones of SSK Industries. It has a bullet diameter of 0.950 inches, while its case length is ..., From the data I have on these 3 cartridges it looks like the 7X30 JDJ (aka 7-30 Waters Improved) will do anything the other two cartridges will do in a Contender but with less powder and less recoil. If you were going to have my barrel rechambered for a 7mm Cartridge which would be your choice and why., JD Jones’ .950 JDJ cartridge is generally described as the largest sporting rifle cartridge ever produced for arguably the strongest gun in the world for sporting purposes. Most Powerful Guns from J. D. Jones. Gunmaker, cartridge designer, and SSK Industries founder J. D. Jones forged a name for himself with quality hunting arms and ..., .375 JDJ - Published Manufacturer Loading Data Shellholders: Lee #11, In the realm of firearms, where power often goes hand-in-hand, the .950 JDJ rifle cartridge stands out as a titan among giants. Developed by J. D. Jones of SSK Industries, this …, Oct 27, 2023 · The .309 JDJ round is one of many wildcat cartridges created by J.D. Jones, the original founder of SSK Industries and one of the legends of the firearms industry. Unlike most of those legends, Mr. Jones is still with us. Jones took a 444 Marlin case, sharpened the shoulder angle and necked it down to .308″. , .950 JDJ cases are approximately 70 mm in length, and are based on a 20x110mm case shortened and necked up to accept the .950 in (24.1 mm) bullet. Projectiles are custom-made and most commonly weigh 3,600 grains (230 g) which is 8.2 oz. or over half a pound. This piece is pretty big. 2x2x6., Made by SSK Industries, the .950 JDJ is the largest sporting rifle made. The cartridge began as a 20mm Vulcan round, cut down to 70mm case length and necked ..., Meet the .950 JDJ. When it comes to a rifle cartridge, nothing is larger than the .950 JDJ, which uses 240 grains of powder to push a 2,400-grain bullet at 2,100 feet per second (FPS). In addition to being the largest caliber on the market today, it has also been measured as generating 277 foot-pounds of recoil, or approximately 10 times as much as …, The biggest bullet caliber is the .950 JDJ, a custom-made rifle cartridge developed by the American firearms company SSK Industries. It is designed to be one of the largest and most powerful rifle cartridges in existence. What is the most powerful bullet caliber? The .950 JDJ is considered one of the most powerful rifle cartridges in the world., Jan 8, 2021 · The well-known .375 JDJ wildcat cartridge is an interesting hunting cartridge for the handgun. It’s formed by necking down the .444 Marlin case to a .375. It has a reputation for putting down elephants, Cape buffalo, moose, elk and grizzly bear, as well as wild boar. As one might expect, the .375 JDJ cartridge generates a lot of muzzle blast ... , Crafted from a 20×102mm Vulcan cannon case, shortened and necked up to fit a .950 inch (24.1 mm) bullet, the .950 JDJ is a cartridge that redefines large caliber. The projectiles for this ... , SSK is also the home of the Whisper and JDJ series of handgun and rifle cartridges. Once strictly wildcats, Whisper and JDJ ammo can be bought from Cor - Bon ..., I was going to rechamber either a Marlin 336CB in 38-55 WIN or a model 375 (336) in 375 WIN to a cartridge I designed and call the 376 Steyr Short, but have a better way to go. I have been in contact with prominent lever action gunsmith Mr. Regan Nonneman about rechambering my Marlin Model 375 from 375 WIN to 375 JDJ., JD Jones' .950 JDJ cartridge is a generally described as the largest sporting rifle cartridge ever produced, producing more energy than even the 4-bore cartridges that match it in bore diamete. Failed to …, All of these types of custom rounds belong in a 14" or longer barrel. 1) Starting from a .30 Herrett barrel, rechamber to .30/30 Improved or .30 Alaskan. 2) Starting from a .30/30 barrel, rechamber to .308 Bellm. 3) .309 JDJ and its case capacity do not belong in a Contender barrel, handgun or rifle, in spite of SSK's hype to the contrary, but ..., My project of converting my 14" Armor Alloy .35 Remington barrel to 358 JDJ is actually coming together. I have my quote from SSK and am readying everything to send off. This project started in about 2002 with the purchase of the barrel and has waited for available funds/time/energy/etc. I've been reading everything I can about the cartridge ..., The biggest bullet caliber is the .950 JDJ, a custom-made rifle cartridge developed by the American firearms company SSK Industries. It is designed to be one of the largest and most powerful rifle cartridges in existence., The several offhand targets with the shooter having to move was my contribution, and quickly done away with. Between hunting and IHMSA I decided to make up some cartridges—the 6.5, 7mm, and .375 JDJ reamers were ordered at the same time and the barrels all came together at the same time. , Scrolling through the annals and innards of this forum it seems a while back since this cartridge was discussed and then mostly as to where factory rounds could be acquired. OK, I have owned a 375JDJ barrel for a number of years and almost all of my loading has been with Reloader 7 and a flat nose 220 grain Hornady projectile and furry …, rare and hard to find 16.25 375 jdj super sixteen contender rifle barrel – t/c thompson center stainless steel – front sight present – rear sight present – lightly used beautiful hard hitting stainless steel rifle barrel. chambered in the wildcat 375 jdj cartridge. 16.25 oal stainless steel heavy bull barrel – bore is sharp and prominent., For as long as I can remember I have been handloading and shooting many popular wildcats, like the .357 Herrett, 7mm TCU, .243 AI, .280 AI, .300 Whisper, .375 JDJ, and several others. I learned about case forming and load development by working with these cartridges, often in the very early years when there was little available data., The .309 JDJ round is one of many wildcat cartridges created by J.D. Jones, the original founder of SSK Industries and one of the legends of the firearms industry. Unlike most of those legends, Mr. Jones is still with us. Jones took a 444 Marlin case, sharpened the shoulder angle and necked it down to .308″., Place the foam insert into the 6.5-inch DJ case. Secure the lid onto the DJ case. Line the interior of the case with a cushioned foam pad to protect the contents. Close and secure the latch/lock on the case. Label the case as desired. The 6.5 JDJ is one of the early examples of the JDJ series of cartridges., The 375 JDJ was designed by J. D. Jones of SSK Industries in 1978 as a Wildcat Cartridge, formed from the 444 Marlin “Parent” cartridge used in the custom JDJ barrel for the T/C Contender. The 375 JDJ was a “Wildcat” cartridge, until 2004, when Thompson Centerfire (T/C) marketed this caliber as the “Hand Cannon”, for T/C Contender ..., I found a 6mm JDJ#2 but I know nothing about the 6mm JDJ #2 except that it is bases in a necked up improved .225 Winchester Case. ... This cartridge will approach 2800 fps with an 80 grain bullet, although I've had a barrel that would not do more than 2650-2675 fps (though that was a slow barrel, I might add.), An image comparing the .950 JDJ to several other cartridges including a .22 Long Rifle, .223 Remington and .30-06 Springfield. The .950 JDJ is one of the most powerful rifle cartridges ever developed in the area of sporting rifles. It was designed by gunsmith and firearm designer J.D. Jones of SSK Industries, who it is named after, sharing his ..., Here you have the 950 JDJ. The case is made of a 20mm Vulcan case shortened to 4 inches and necked up to 95 caliber. It is not considered a destructive device by the ATF. The 950 JDJ came to life in 1996 by JD Jones but sadly is no longer in production. With the individual hand turned bronze bullets costing $10 a piece and a live cartridge ..., , The cartridge propels its 3,600 gr (230 g) bullet at approximately 2,200 ft/s (670 m/s). This yields a muzzle energy of 38,685 ft·lbf (52,450 J) [1] and a momentum of 154.1 Newton-seconds, about the same as a 20×102mm Vulcan round.