Posts Tagged ‘Bushmaster’

Bradleys vs. T90M Follow-Up

Tuesday, February 13th, 2024

Here’s an interesting follow-up to that two Bradleys wreck one T-90M post and video a few weeks ago. In this video, Task & Purpose provides more detailed breakdown of the engagement.

  • “In the interview with the Ukrainian Bradley commander Siri, he indicated that the three Bradleys made the conscious decision to seek out the Russian tank. However, one of their vehicles had issues and was not able to effectively engage the tank.”
  • The first Bradley engages the T-90M from a 90° angle, then both vehicles retreat.
  • The T-90 fires and misses. “Aiming at a target close to you in a tank becomes more difficult because you have to traverse the turret faster, and objects will move across your line of sight faster due to its close proximity.”
  • One under-appreciated factor: Turret turning speed. “In the 30ton MSA2 Bradley, the turret can spin 360° in about 6 seconds, or 60° per second…The most often cited metric I see [for the T-90] is about 9 seconds to do a full 360°, or about 40° per second.”
  • “They’re just 50 meters apart. This fight was essentially a ticking time clock for the T-90, because they had a very limited amount of time before the Bradley would manage to knock out their optics and blind them.”
  • “The T90 only had enough time to get off three cannon shots. The T90 has a stabilized turret and autoloader that can fire on the move with up to eight rounds per minute. The T-90 backed away from the road intersection while blindly firing through buildings.
  • “The Ukrainian Bradley does the same thing here, with its 25mm chain gun firing dozens of rounds while flooring it along the road away from the tank.”
  • The encounter took place in the town of Stepove, which is about 12km NW of Avdiivka, where some 40,000 Russian troops have been trying to take the pocket for months.
  • “Forbes reports that Ukraine’s knocking out 13 Russian vehicles here for every one that they lose.” But Ukraine may still have to fall back here.
  • “Most of the buildings are completely destroyed, but the rubble is going to be a major advantage for the Bradley’s to fire and then duck and weave behind for cover.”
  • “The next thing that happens is the T-90M fires off a smoke canister, which is a textbook act to conceal its position and disrupt the thermal sites in the Bradley. There different perspectives on what exactly happened when the smoke was set off. It appears like maybe one of the T-90’s explosive reactive armor pieces might have blown at about the same time, causing that large explosion that we see here. It could have also been from a misfire from the smoke grenade.” I’ve also heard the theory that the Bradley’s 25mm fire may have already damaged the smoke dispenser at this point, triggering the explosive misfire.
  • The physical damage to the T-90s turret may appear minimal to us, but to a Russia tank crew, it would like being inside a large bell being hit by a hammer. “The Russian tank crew would have been extremely disoriented by the blasts, even if the chances of that smaller caliber round penetrating was very unlikely. It’s easy to forget the human factor in these fights.”
  • The Bradley’s “M242 25mm bushmaster chain gun fires roughly 200 rounds per minute at the highest cyclical setting.”
  • “Inside the turret are two ready boxes which feed the linked ammo into the receiver. This gives you the ability to fire two different types of ammo on the fly. That includes the M919 APDST, or armor-piercing discarding sabo tracer depleted uranium round, and the M792 high explosive incendiary tracer rounds.” There’s a switch to change between the two.
  • “The Bradley’s anti-armor 25mm cannon round can penetrate between 30mm to 100mm of steel, depending on the angle at which the round strikes the target.”
  • “However, the Russian T90 reportedly has 400 to 900mm” of armor. Unmentioned here is that the T-90M (like the US, UK and Germany) uses composite armor rather than just steel.
  • So how did the Bradleys disable the T-90? Theory #1 is they destroyed both the commander and gunner’s optics. “If you’re able to hit them, then the crew is completely blinded and essentially combat ineffective.” Ukrainian commander Siri said he learned the tactic from War Thunder. (Are American tanks taking sufficient precautions to keep this from happening to them? To be fair, the chance of enemies getting a 25mm auto-canon this close to an Abrams seems…remote.)
  • Theory #2: Turret ring connection destroyed (much more likely electronics than hydraulics) sent the turret into auto-rotation as seen at the end of the video.
  • Why wasn’t the TOW missile not used? Maybe it wasn’t working, or maybe it was just too close for the TOW to arm properly.
  • The Bradley crew might have run out of APDST and switched to high explosive.
  • Russian tanks have slower reverse speeds than American armored vehicles.
  • There are some 78 Russian attacks a day in this sector. “Ukraine counterattacks with Bradleys, raking the tree lines with 25mm cannon fire. Bradley’s also transports small assault teams that clear out Russian stragglers from time to time. Once Stepove and the tree lines by the railroad are clear, or mostly clear, of Russian troops, Ukraine pulls back to their functional defensive positions and waits for the next Russian attack.”
  • There’s lots more interesting technical and doctrinal details I’ve cut for the sake of brevity.

    Worth looking at.

    .50 BMG vs. Heavy Metal

    Monday, December 14th, 2020

    In some of the previous .50 BMG vs X videos I’ve shared, they tended to demolish whatever they were shooting at. This time, I’ve got video of them shooting at thicker and heavier metal plates and blocks.

    First up: Going Ballistic tries four different .50 BMG rounds (MK263 armor-piercing, MK211 Raufoss, SLAP tracer, and armor-piercing incendiary tracer) through a Bushmaster .50 BMG against a 1.75″ plate of titanium:

    Then they did the same with a two 1″ titanium plates plate, only this time out of an M2AHB Browning machine gun:

    Includes a 75″+ richochet!

    Next comes the same rounds vs a 2″ AR500 steel plate, plus a Russian “Zebra” round, whatever the hell that is.

    Then Demolition Ranch takes on a block of tungsten:

    Bonus: Here Matt from Demolition Ranch just drops the tungsten block on stuff from a tree stand: