Gatnerd

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Gatnerd

Gatnerd

@gatnerd

Firearms and military nerd commentary.

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Gatnerd
Gatnerd@gatnerd·
@Sterben1031 Well, the Knox is just what we have as an example of "narrowmaxxing" for magazine capacity optimization. A more practical starting off point might be a cartridge based on the case head size of the 4.6x30, stretched to like x45, firing a 5mm VLD projectile while having 40rd mags.
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Ich Sterbe
Ich Sterbe@Sterben1031·
@gatnerd Frankly I think straightwall cases are a horrible usage of the tech, bottleneck all the way with this stuff. While I don't find 5.7x28 very exciting, high pressure 224 Boz could be interesting, or even something akin to 22 Spitfire. Breaking 4k FPS could make SCHV real as well.
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Gatnerd
Gatnerd@gatnerd·
Knox High Efficiency Cartridge = 5.56 Using High Pressure, they were able to duplicate 5.56 ballistics in a much smaller round, allowing for 50rd magazines and 30% less ammo weight. A much more interesting option than making legacy calibers more powerful.
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Gatnerd
Gatnerd@gatnerd·
@D_E_Harris_Best Up to me? A sort of SCAR/Ultimax 100 constant recoil assault rifle that could pair ultra controllable FA fire with the 50rd magazines and the oversize bolt of the SCAR.
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D-E-Harris
D-E-Harris@D_E_Harris_Best·
@gatnerd Right, but steel casings also come with their own issues. What sort of rifle is meant to run this round?
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Gatnerd
Gatnerd@gatnerd·
@Helvegen29 No one wants to pay the cost to be the boss I suppose. Is anyone advertising DPICM cluster shells, now that they have returned post-Ukraine?
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Helvegen
Helvegen@Helvegen29·
155mm PFF is also yet to find a buyer
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Gatnerd
Gatnerd@gatnerd·
@BrandonFDW Reminds me of the Suitcase Rifle from the movie "The Long Kiss Goodnight" (1996)
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FD
FD@BrandonFDW·
B4 Armory CSS (Concealable Sniper System) is a breakdown sniper rifle designed for reduced signature or covert operations. It's currently being evaluated by a SOCOM unit and one of the largest Federal agencies special units (either CPB BORTAC, FBI HRT or BOP).
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Gatnerd
Gatnerd@gatnerd·
@D_E_Harris_Best Probably not, just because we haven't really seen polymer regular cases be truly perfected even at regular pressures, much less the ~100kpsi this would run. But steel would be lighter then brass, and combined with the narrow case it would be very light.
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D-E-Harris
D-E-Harris@D_E_Harris_Best·
@gatnerd Can it be done with polymer cases, thus reducing weight further?
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Gatnerd
Gatnerd@gatnerd·
@UberSoldat1025 That's my take as well, mag capacity is one of the few frontiers left.
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Cocktopus ✈️
Cocktopus ✈️@UberSoldat1025·
Fitting more bullets in the same size magazine is one of the only places to improve modern small arms Other wise they’re light enough, reliable enough, accurate enough, lethal enough, that it’s not worth adopting any new system
Gatnerd@gatnerd

Knox High Efficiency Cartridge = 5.56 Using High Pressure, they were able to duplicate 5.56 ballistics in a much smaller round, allowing for 50rd magazines and 30% less ammo weight. A much more interesting option than making legacy calibers more powerful.

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Gatnerd
Gatnerd@gatnerd·
@Sterben1031 I'm hoping to bring it back now that High Pressure Cases are coming online.
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Ich Sterbe
Ich Sterbe@Sterben1031·
@gatnerd 2 decades later and 5.56 Knox is relevant again lol
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Gatnerd
Gatnerd@gatnerd·
@KevinCasperWid @MarkSerbu Yes, I think the project failed in 2004 because they just had brass. By re-surfacing this old program, I'm hoping Federal/SIG/Shell Shock investigates this or similar mini cartridges using their new High Pressure Case tech.
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Kevin Widner
Kevin Widner@KevinCasperWid·
@MarkSerbu @gatnerd Looks to be a brass case, can't believe they would be getting the pressures seen in the stainless/brass hybrid cases or all stainless cases like Federal recently announced. Bet they could pump those numbers up if they did the testing again today.
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Gatnerd
Gatnerd@gatnerd·
@MarkSerbu Sadly reports are scarce/may be lost to time, program was around 2004ish. Probably around 100kpsi if I had to guestimate. SIG has indicated its Hybrid cases can handle 125kpsi, and Federal's new PEAK likely similar. Hopefully they will experiment with mini cartridges like this.
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Gatnerd
Gatnerd@gatnerd·
@sankohaindustry Small batch, cooked with love machining, plus chambering a novel magnum pdw cartridge. It's all the flex.
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San Koha Industries
San Koha Industries@sankohaindustry·
@gatnerd I remember a few years back Big Daddy Unlimited was pushing these so hard when they were still in buisness, and for that reason I never looked into them…but why are they so much money?
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Gatnerd
Gatnerd@gatnerd·
@MVargo6 That would be glorious. I had previously been thinking of a B&T MP9 type PDW in 7.5.
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MVargo
MVargo@MVargo6·
@gatnerd Fun fact. 7.5 FK has no case taper which makes it a legitimate candidate if somone wanted to make a P90 that was chambered in a .30cal cartridge.
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Gatnerd
Gatnerd@gatnerd·
@Eli74599 Awesome. How is firing 7.5 in real life, as fun as it looks?
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Eli
Eli@Eli74599·
@gatnerd I have the PSD and i love it. if i make enough money to buy the field pistol I'm openly flexing it
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Gatnerd
Gatnerd@gatnerd·
@Tapas1776 Ukranians have tested this and found lead birdshot cannot reliably penetrate the carbon fiber and composite structure of modern drones reliably, which is why everyone is switching to tungsen BB's. The copper triplex rifle bullet, flying ~3x the speed of shotgunBB, will also work
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Tapas
Tapas@Tapas1776·
@gatnerd Why not just a shell of cheap birdshot?
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Gatnerd
Gatnerd@gatnerd·
Anti-Drone 5.56 NSWC Crane’s ‘Drone Killer Cartridge’, designed to break into 3 pieces to create a mini shotgun effect for better hit probability against drones. Range better than the previous saboted BB designs, at the expense of having less close range spread.
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Gatnerd
Gatnerd@gatnerd·
@vbgamer17 @DoomerTapes Probably around 100 yards is where there would be enough spread to help statistical hit probability vs unitary, while still having some energy left with the subprojectiles. Just my gut take on it though, no data to support that.
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Gatnerd
Gatnerd@gatnerd·
@TheWesternBlue1 @2805662 M80A1 out of 300 win mag and now the 6.8 GP have been tested by Buffman and and others, and are not penetrating Level IV. Here's Chinese Level IV stopping (albeit with terrible backface deformation) M80A1 at 3700fps, wayyy beyond the SIG load. youtube.com/watch?v=nD_1-I…
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TheMidWesternBlue
TheMidWesternBlue@TheWesternBlue1·
@gatnerd @2805662 Level V doesn't exist, and despite Colosus armor being out for a decade, no military fields it. Also this isn't the case, Sig using M80A1 projectiles with their HYP ammunition absolutely destroyed body armor M993 is a VERY dated projectile design
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Gatnerd
Gatnerd@gatnerd·
@TheWesternBlue1 @2805662 That velocity estimate is with Tungsten; steel wont penetrate level IV at any sort of range until you get to .50ish. Level IV is incredibly robust - to say nothing of emerging Level V like the Adept Colosus, with some models stopping legacy M993 7.62 tungsten at 2750fps at 40'.
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TheMidWesternBlue
TheMidWesternBlue@TheWesternBlue1·
@gatnerd @2805662 Bullet material is going to be drastically more important than 150 fps. The increased sectional density is also going to make penetration easier over 30 cal bullets
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Gatnerd
Gatnerd@gatnerd·
@__iDio @DoomerTapes No, the whole bullet itself is normal weight. It's when the bullet breaks into 3 pieces after leaving the barrel, that each mini bullet weights 1/3 as much as normal.
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Jelajahi

@Sterben1031 @D_E_Harris_Best @Helvegen29 @BrandonFDW @UberSoldat1025 @KevinCasperWid @MarkSerbu @sankohaindustry