Why didn't they just use a full steel case?

Wouldn't a full steel case in .277 Fury be lighter, easier to manufacture and still be able to handle the pressures? I get needing to make a bespoke process to nickle and dime the government but from a mechanical standpoint it doesn't make sense.

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  1. 1 month ago
    Anonymous

    The bi-metal case is probably for better heat transfer and reduced throat erosion. The barrels already have a much shorter service life than the M4, using a fancy bullet is probably cheaper than replacing the barrels twice as often.

    • 1 month ago
      Anonymous

      Substantiate literally anything you've just said

      • 1 month ago
        Anonymous

        what the frick is this shit

        https://www.luckygunner.com/labs/brass-vs-steel-cased-ammo/

        • 1 month ago
          Anonymous

          These aren't steel cased, though. It's brass case with a stainless base

        • 1 month ago
          Anonymous

          OP asked why they didn't make a full steel case.
          People wanted citation on why brass has better reduced throat erosion.
          The article shows the benefits.

          • 1 month ago
            Anonymous

            >just draw cases out of stainless steel, bro.
            >it'll be fun, bro.
            lol
            lmao

            >why brass has better reduced throat erosion.
            But the difference in barrel life has exactly nothing to do with the case material.
            It's the searing-hot powder and the bimetal-jacketed bullet that roast barrels.
            If you shipped a pallet of .223 brass to Tula and had them load it up, it'd be just as hard on the barrel.

    • 1 month ago
      Anonymous

      Why would you want better heat transfer in your case? That's the opposite of what you want

      • 1 month ago
        Anonymous

        >Why would you want better heat transfer in your case?
        To remove heat from the gun when the hot brass ejects.

        • 1 month ago
          Anonymous

          It doesn't do that, though. It adds heat to the gun by conducting it through the case into the chamber. The amount of heat removed by ejecting the case is miniscule by comparison

    • 1 month ago
      Anonymous

      what the frick is this shit

  2. 1 month ago
    Anonymous

    USA unable to match Russian steel case ammo tech. Simple as.

    Part of why Russia is about 3 gens ahead of NATO in HMG and MMG design, and why many of the top operators in 'Nam that were actually doing firefights for a living in the field ditched M-16s for AK-47.

    • 1 month ago
      Anonymous

      BTW, a few other Missed Ops of new US Army gun....

      shoulda:

      been a system able to be normal OR bullpup.

      had a new rifle grenade/lite mortar/recoilless missile TOP mounted long tube that is fully integrated into the target computer. 3 new types of rounds for all new system. I fig an about 40mm HEAT would be enough to take out most tanks from side or rear, or a tread, and would complete rekt most IFV from any angle.
      Additionally....wait for it....here it cums!.....

      dedicated ANTI-Drone round of some sort, maybe a couple sorts. Proxy Fuse that is more about tangling the props? Chaff cloud or Mag-pulse? Soft launch mini-anti-drone drone?

      chest mounted front pack belt fed.

      G3 style fully sliding stock for max range AND maybe use with lite mortar feature.

      • 1 month ago
        Anonymous

        moron

      • 1 month ago
        Anonymous

        >antidrone round
        Fix detection first. The rest are simple.
        >Rifle grenade(not fun size ones from homosexual launchers)
        Has been absent from US due to not willing to toggle gas block, use bullet trap or blank charge safely every time, despite was done favorably in the past and auguably the best, most frugal and versatile tool to throw a pound(+- 50%) of anything to up to 120 meter away direct fire <3 second, 250 meter in higher arc for 4-7 seconds.

        • 1 month ago
          Anonymous

          all that too, I guess, but how do you kill drones once detected? figure you want to leap-frog WTF level 1 defense drones will get.

          also, how about rifle grenade that also functions as potato masher, maybe with fins that pop out of the otherwise smooth handle shaft only after fired. I guess it would need time fuse and impact.

          I hear even today there is several seconds of diff for baseball grenade fusing timing, which IMO is unacceptable. Shouldn't be anymore than 1/4 second inaccurate.

          • 1 month ago
            Anonymous

            I'm honestly not sure why we don't use electronic fuses for hand grenades. Cooking a grenade is a viable option if you have exact timing. A simple 5-led indicator for time remaining wouldn't even be hard to implement and would remove the need for mississippis.

    • 1 month ago
      Anonymous

      >us unable to match Russias Tula ammo
      Lmao sure you know as crazy as it sounds I’ll give you a maybe on “has America mastered the arcana of shitting out sub chink tier garbage in bulk? No”
      But you want me to believe the AK or its loads have ever been anything other than lowest common denominator slop?
      gtfo

      • 1 month ago
        Anonymous

        fact remains many top US Army operators were ditching ARs for AKs the last time US forces were in tactical near-peer engagements.

        ARs did OK in Sand Box but consider there were never any US Troops very far from Green Zones and air-conditioned tents and lavish bases, so they could all be baby-sat to clean ARs.

        However, IIRC many US troops of some supply convoy got captured in part because they claimed all their ARs jammed. Maybe they were just not wanting to get slaughtered not knowing how much ambush they were facing and they were a supply unit that didn't do much AR training.

        Figure Russians have at least 10x as much combat exp, including after WW2 from various proxy forces, and they seem to have determined accuracy of AK is fine with their quality of ammo.

        • 1 month ago
          Anonymous

          Are you just pretending to be moronic or what

  3. 1 month ago
    Anonymous

    Full (stainless) steel case would be much more difficult to swage. Harder on the tools and requires more steps. Definitely not easier, as difficult as that is to believe

  4. 1 month ago
    Anonymous

    >no qd barrel
    What a fricking joke. Time truly is a flat circle.

  5. 1 month ago
    Anonymous

    Because a bimetal case allows sig to juice more fricking MIC gibs out of the US taxpayer. This entire fricking circus of a program needs to be scrapped and everyone involved jailed for embezzlement.

    • 1 month ago
      Anonymous

      Bi metal is cheaper than a full stainless case, believe it or not

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