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| The Rifle | The Ammunition | Ballistics | Disassembly |
The Krag Jorgensen rifle was originally designed by Captain Ole Hermann Johannes Krag, who was the director of the Royal Norwegian Arms Factory at Komgsberg (Kongsberg Våpenfabrikk), and Erik Jørgensen, also of Kongsberg, Norway.
This rifle was chosen by a US military board which convened to find a new service rifle to replace the .45-70 Springfield single-shot rifles then in service. The board first met in New York in December of 1890 and concluded their proceedings in July of 1892. They compared rifle designs from Lee, Krag, Mannlicher, Mauser, Schmidt-Ruben, and about 40 other military and civilian designs. The trials were held at Governors Island, NY.
While it was adopted in 1892 as the military rifle of US forces, it was not produced until 1894. Because the adoption of a foreign design upset some of the American inventors of competing rifles, the government was pressured to conducted a second round of tests during April and May of 1893. None of the other rifles passed the testing and the Krag was then put into production. According to government records 442,883 Krag rifles and 63,116 carbines (these figures vary slightly depending on the source) were eventually manufactured by Springfield Armory with a $1.00 royalty for each rifle going to the two inventors. The Krag, was also adopted as the service rifle of Norway as the M1894 in 6.5 x 55 mm, and in 8 x 58 mm R (rimmed) by Denmark as the M1898.
The Krag was the first US rifle to have the top of its barrel covered with wood for a handguard. While it is known for having the smoothest action of any rifle, its one locking lug action was not as strong as some of the other designs which utilized 2 or 3 lugs and made it susceptible to group stringing with wet ammunition because of unequal bolt face force. Its side mounted magazine was slow to load but the slowness of reloading was not viewed as a shortfall. At the time, the US military philosophy still placed great emphasis on precise aimed fire and looked upon the magazine as a reserve. (While high volumes of fire are now all the rage, and while they serve to allow mobility of force, it is interesting to note that, even in this day and age, when the military needs results it is the precision rifleman armed with a bolt action rifle that is called upon to do the job.)
The ballistics of the .30-40 cartridge were not equal to those of other available military rounds including the 7 x 57 mm Mauser used by Spanish forces. It should, however, be noted here that the 7 mm Mauser was used only by the elite Spanish regular forces. The local troops and militia units were armed mainly with Remington Rolling Block single shot rifles in 11 mm (.43 Spanish) which fired a 387 gr lead bullet at about 1340 fps and which was inferior to even the US .45-70 round.
The Krag, "U.S Magazine Rifle, Model 1892," or as it was often referred to, "The .30 Caliber Springfield Rifle of the Krag-Jorgensen Pattern" was made in several different models and variation during its 11 year service life. All models were fitted with 4-groove .308" diameter barrels which had a 1:10 " twist. I have been unable to find any accuracy standards but the rifle was deemed to be "effective" at 600 yards against infantry and 650 yards against cavalry.
As an interesting aside, in spite of its "slow to reload" magazine, War Department records indicate that it was possible for a skilled shooter to fire 43 aimed shots in 2 minutes using the rifle as a magazine fed repeater and 42 shot in the same time as a single loader. These times were recently confirmed by a correspondent from Norway who informed me that in a national match the 3rd place winner got 27 hits at 100 and 200 meters in 50 seconds using a Krag rifle.
Despite all of its shortcomings the Krag rifle served faithfully in the Spanish-American War (1898), the Philippine Insurrection (1898 - 1904), the battle of Tagalii, Samoa (1899), and the China Relief Expedition--also known as the Boxer Rebellion (1900). It also was issued for guard duty service during both WW I and WW II.
The Krag rifles utilized by US Forces during the Spanish American War
were the M1892 and M1896 models. While many of the Rough Riders carried
their own arms, their government issued rifle was the Krag M1896 carbine
since they were considered to be cavalry (dismounted).
|M1896 Krag Rifle|
|M1896 Krag Carbine|
|Krag Rifle Variations|
|M1892 Rifle||30||9.38||49||1892-09-15||Mag cut-off operates in up position.
Identifiable by cleaning rod under barrel.
|M1892 Carbine||22||8.3||41.2||--||Prototype--only one known. Looks like a short standard rifle.|
|M1896 Rifle||30||8.94||49||1896-02-19||Mag cut-off operates in down position,
cleaning rod moved to butt trap, improved rear sight, tighter
manufacturing tolerances increased accuracy,
thicker grip area of stock for strength.
|M1896 Cadet Rifle||30||9.0||49||1895-06-01||Fitted with cleaning rod like M1892
rifle. Only about 400
were made before it was discontinued.
|M1896 Carbine||22||7.75||41.2||1896-05-17||Same modifications as M1896 rifle|
|M1898 Rifle||30||9.0||49.1||1898-03-14||Wide variety of minor improvements|
|M1898 Carbine||22||7.80||41.2||1898-03-14||Same modifications as M1898 rifle|
|M1899 Carbine||22||7.87||41.2||n/a||Slightly longer forearm and handguard. No swivel ring.|
|M1899 Constabulary Carbine||22||8.03||41.2||1906-02-10||Basically a carbine fitted with a
full length stock
and a bayonet lug. Muzzle is stepped down to accept
bayonet. Built for Philippine police use.
The ammunition for the Krag is known under numerous names.
|.30-40 US Krag
.30-40 Krag, US Army
.30-40 Krag Army
.30-40 Krag & Winchester
.30 US Krag
.30 USA Army
7.62 (Kal .30) US Krag Jorgensen M/93
The basic ammunition load for the Krag armed soldier was 100 rounds carried in a double-loop "Mills" belt about the waist but many soldiers carried a second belt over the shoulder.
|.30-40 US Army Cartridge Basic Specifications|
|Weight of loaded ball round||435 to 442 gr|
|Cartridge case||Brass or tinned brass|
|Bullet Jacket||Cupro-nickel or steel. Several different designs used.|
|Bullet Core||Lead and tin (mix not stated)|
|Bullet Weight||220 gr (From 1890 to 1893 a 230gr
bullet was issued. No ballistic data is known.) The jacket was made in
both steel jacketed and
|Powder Charge||35 to 42 gr of nitrocellulose powder,
38 gr normally listed. The
ammunition was also loaded with Cordite powder by the English
firm of Kynoch and these headstamps carry the letter "C"
|Muzzle Velocity (Ball)||2000 fps (rifle) 1960 fps (carbine)
at 40,000 psi. In October of
1899, the round was loaded to 2200 fps (rifle) at 45,000 psi in
an attempt to improve ballistics, but reports of cracked locking
lugs began to surface. In March of 1900 the remaining stocks of
this ammunition (3.5 Million rounds) was returned to the
arsenals, broken down, and reloaded back to 2000 fps.
(Dry Oak @ 3’)
|45" - 48"|
|.30-40 Krag Cartridge Dimensions (SAAMI)|
|.30-40 US Army Cartridge Issued Variations|
|Ball||Long round nosed bullet|
|M1893 Blank||Case extended to look like a bullet. Small hole and 3 slots in tip|
|M1896 (M2) Blank||Natural color paper bullet||Case contains 5 gr EC powder and bullet contains 5 gr EC powder|
|M3 Blank||Cannalure around case neck and
shellacked paper wad
|Possible a commercial variant. Seen
with late 1920-1930s date stamps.
|M1896 Gallery||No visible bullet. Case neck is cannalured about half way down||One ball of about 50 grains. Originally
the bottom half of the cartridge
case is solid with a long flash hole. but this was changed to a
standard case design. Charge is 5.2 gr of unnamed smokeless
|Garrison Gallery Load||Short semi-pointed lead bullet||Bullet variations exist as this was hand loaded by different units|
|Cannalure at base of cartridge neck||2 round lead balls|
|M1895 Dummy||Fluted and/or drilled case||Many variations some locally made|
|Sub-Caliber Artillery Trainer||Large protected primer||May be found with both the 220 grain
round nose bullet or a 173 gr pointed bullet (.30 M1 boat tailed bullet)
|M1904 Guard||156 gr or 177 gr RN lead bullet||Crimp around case neck|
|Military was normally RA, F, or FA with date. However, ammunition was produced for government use by Kynoch in England and headstamped K or KC with the date and by Winchester with a WRA headstamp. Commercial production is usually marked ".30 USA," ".30 Government," "or .30 Army."|
The firing table below shows the approximate ballistics for the .30-40 Krag ball round fired from the Krag rifle with a 30" barrel and the 7 x 57 mm ball round fired from the 30" barreled M93/M95 Mauser. This data is based upon modern bullets of the same design and weight. A 300 yard zero is used and the sight height of 1" is assumed. (The actual sight height of the Krags ran from .85" to the .975" depending on the particular model.) "Standard" atmospheric conditions are assumed. The data presented for the .30-40 compares well with the original firing tables so the 7 x 57 data should be close too.
As can be seen, the 7mm with its substantially flatter trajectory has a ballistic advantage over the .30-40 Krag. The 7 mm's other advantage was that the rifle was capable of a much higher sustained rate of fire than the Krag due to its stripper clip loading ability, and its truly smokeless ammunition made the shooter more difficult to spot compared to the Krag and especially to the .45-70 black powder Springfield single shot rifles.
Surprisingly no experimentation seems to have been done with lighter or pointed .30 caliber bullets. Using the powders of the day it would have been possible to reach about 2550 f/s in the rifle with a 150 gr spitzer bullet or about 2350 f/s with a 173 gr spitzer or boat tail, at safe working pressures. With a 173 gr bullet the .30-40 would have matched the ballistics of the 7mm and with a 150 gr or so would have substantially bettered them. Interestingly, in 1893 there were some experiments done using .22 caliber bullets of between 112 gr and 120 gr on modified .30-40 cases and velocities of about 2600 f/s were achieved. However, the powders of the day were not really suitable and based upon the results the project was dropped.
In October of 1899 a large batch of ammunition for the Krags was loaded to a velocity of 2200 f/s at 45,000 psi in an attempt to boost the round's ballistics. However, reports started coming in from the field of cracked locking lugs and bullets stripping in the rifling and this ammunition was recalled, broken down, and reloaded to standard specifications.
Those reloading for the Krag (including the 6.5 x 55 mm Norwegian and 8 x 56 mm Danish) should keep pressures to 40,000 psi and under.
US Army Cartridge
(220 gr FMJ-RN)
57 mm Spanish Cartridge
(175 gr FMJ-RN)
The Rifle in America, by Philip B. Sharpe, William Morrow & Company, New York, 1938. (Out of print. Was reissued in a special collectors addition by the National Rifle Association in 1995.)
The Krag Rifle, by William S. Brophy, Gun Room Press, 1985, ISBN: 0882270257 (Available from: Rutgers Book Center, Highland Park, NJ (Phone: 732-545-4344)
The Reliable Krag, by Ludwig Olson, Rifle Magazine, March-April, 1992, p. 20
The Krag Rifle Story, by Franklin B. Mallory with Ludwig E. Olson, Springfield Research Service, Silver Springs, MD, 1979, ISBN: 0960330607
History of Modern U.S. Military Small Arms Ammunition, Vol. I: 1880-1939, by F.W. Hackley, W.H. Woodin, & E.L. Scranton, Macmillan Co., New York, 1967
Rifle Caliber Blank Cartridges, by Charles H. Yust, Jr., The American Rifleman, February, 1966, p. 42
Cartridge Corner--Krags And The Spanish American War, by Stu Miller, Shooting Times, November, 1962, p. 38
Ammunition-Its History, Development and Use, by Melvin Johnson & Charles Haven, William Morrow & Company, New York, 1943, p. 88
Krag Jorgensen .30-40 Takedown Guide, by Radocy , Publisher Radocy Take Down Guides
Description and Rules for the Management of the .30-40 Krag Krag M1892 Rifle and Carbine, and Description And Rules For The Management Of The U.S. Magazine Rifle and Carbine, Caliber .30, by US Government Printing Office. Republished by Firing Pin Enterprizes, Phoenix, AZ
The above two listings are available through Ray Riling Arms Books Co., Inc. 6844 Gorsten Street, Philadelphia, Pa 19119. Email: - email@example.com
If you know of any other good reference books or magazine articles on
either the US Krag rifle or its ammunition, or if you can supply additional
information, please email me at: firstname.lastname@example.org
with the particulars.