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Requests for proposals to industry regarding designs to utilize the recently approved 7.92x45 intermediate cartridge received a number of responses. In addition to a proposal from the Gustloff-Werke to convert and adapt the Heer’s Selbstlade Gewehr G5 to fire the new cartridge three new designs were submitted for evaluation.
Industriewerke Karlsruhe Karabiner 04
Derived from the G5 design and sharing its action. Semi-automatic only.
Weight: 4.14 kg
Length: 1,005 mm, 1,205 mm
Barrel length: 520 mm
Cartridge: 7.92x45mm
Action: Gas-operated, semi-automatic
Rate of fire: 25 rounds/min (practical)
Muzzle velocity: 760 m/s
Effective firing range: 650 metres
Maximum firing range: 1,200 metres
Feed system: Clip-fed, staggered-column, 10 or 20-round detachable box magazine
Sights: Open iron sights graduated from 100 to 900 m
Walther-Werke Maschinenkarabiner 05
A new design using a conventional tilting bolt action; capable of both semi-automatic and automatic fire.
Weight: 4.6 kg (unloaded with magazine)/ 5.13 kg (loaded)
Length: 940 mm
Barrel length: 420 mm
Cartridge: 7.92x45mm
Action: Gas-operated, tilting bolt, full auto or semi-auto
Rate of fire: 550–600 rounds/min
Muzzle velocity: 760 m/s
Effective firing range: 300 metres (automatic) 600 metres (semi-automatic)
Feed system: 20 or 30-round detachable box magazine
Sights: Adjustable sights, rear: V-notch; front: hooded post
Mauser-Werke Maschinenkarabiner 06
A new design, incorporating a novel action. Capable of selective fire – single-shot semi-automatic, three-round burst, or full automatic.
Weight: 4 kg (with empty magazine)
Length: 940 mm
Barrel length: 419 mm
Cartridge: 7.92x45mm
Action: Roller-delayed blowback
Rate of fire: 350–450 rounds/min
Muzzle velocity: 760 m/s
Effective firing range: 300-450 metres
Maximum firing range: 800 metres
Feed system: 30-round detachable box magazine
Sights: Rear: V-notch; front: hooded post
For a moment I thought these were assault rifles until I saw the ammo and then went derp.
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The MV on the last two rifles is probably a bit high; I'd expect it to be more in the 680 m/s to 710 m/s range.
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The MV on the last two rifles is probably a bit high; I'd expect it to be more in the 680 m/s to 710 m/s range.
I'm not the firearms expert so I will ask - if the cartridge being fired is the same why would the muzzle velocity be different? Could it possibly be a function of barrel length?
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The pictures are somewhat tricksy, since they show weapons chambered in 7.92x33 Kurz. The 7.92x45 round would increase the width of the magazines and the visual length of the weapon...
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