The video opens with a casual warning not to replicate the test at home, with the hosts joking that they are professionals before launching into the plan. Ka and Jason explain that this is a practical, informal ballistic demo rather than a lab-standard NIJ test. They lay out several near-peer rifle cartridges on the table: 7.62x39, described as the classic AK round still widely used by hobbyists and professionals; 5.45x39, which they call the "crazy" one due to its reputation; and 5.56x45, the ever-present AR-15 cartridge. They mention that ballistic dummies are set up behind various armor plates downrange so viewers can see not only whether rounds are stopped but also what kind of backface effect and potential trauma might occur. The hosts emphasize that the goal is to see how modern plates behave against realistic rifle threats, not just handgun rounds, and that their approach is more "Neanderthal" field testing than white-lab-coat science.
Focus shifts to 5.45x39 ammunition, specifically the 7N6 load that the hosts refer to as the wild card of the test. They pull a round from a dump pouch and show it on camera, noting that this is original Russian surplus that was imported some time ago. They explain that Russia developed 5.45x39 as its own answer to Western small-caliber, high-velocity cartridges rather than adopting 5.56 NATO. The hosts mention that there are multiple 5.45 loadings just like 5.56 has 55-grain, 62-grain, and 77-grain variants. They briefly recount how the ATF previously moved to restrict 5.45 when pistols chambered in that caliber appeared, and how groups such as Gun Owners of America pushed back by arguing that it is fundamentally a rifle cartridge. That legal and import history is used to underline why 5.45x39, and 7N6 in particular, has a reputation as a serious test round for body armor.
The hosts introduce the Guard Dog armor lineup they will be shooting: Level III, Level IV, and Level IV Plus plates. They describe the Level III plates as relatively light and thin, marketed for mobility and even backpack use, and rated for common rifle threats up to standard .308 Winchester. The Level IV plates add ceramic and more mass to handle more demanding rifle impacts, while the Level IV Plus plates incorporate additional polyethylene and ceramic material to further increase protection at the cost of extra weight. The hosts talk through expectations: Level III should reliably stop typical ball rifle loads within its rating, while Level IV and Level IV Plus are expected to handle heavier calibers and tougher projectiles, especially when hits are spaced out on fresh ceramic. They also preview the 5.56 variants they will use—55-grain ball, 62-grain green tip with a steel insert, and heavier 77-grain open-tip match—and speculate about which combinations of plate and projectile are most likely to cause failures.
Before firing, the hosts explain backface deformation: even when a plate stops a bullet, the rear surface can bulge into the wearer’s torso, potentially breaking ribs or damaging organs. To visualize this, they mount plates in front of ballistic dummies filled with material that will clearly show any intrusion. Live fire begins with a 7.62x39 round into a Guard Dog Level III plate. On inspection, the front shows a clean impact and the back reveals a noticeable bulge, but there is no complete penetration and the dummy shows no obvious catastrophic damage. Next, they fire a 55-grain 5.56 round, accounting for optic height-over-bore by holding slightly off. The higher-velocity 5.56 produces more deformation on the back of the plate than 7.62x39, but again the round is contained. The hosts point out that while the armor is doing its job by preventing a through-and-through, the wearer would still feel a tremendous hit, underscoring that survivability involves more than just whether a bullet passes through.
The test escalates on the same Level III plate. A 62-grain 5.56 green tip round with a steel insert in the nose is fired, and this time the plate is defeated: the projectile makes it through the armor and into the ballistic dummy. The round does not exit the back of the dummy, suggesting it yawed and dumped its energy internally, but the plate has clearly been compromised at that impact point. The hosts then try a heavier 77-grain open-tip match 5.56 load near the plate’s logo. Surprisingly, the Level III plate stops this heavier round, and the backface bulge is actually less dramatic than what they saw with 7.62x39 earlier. They note that this aligns with the plate’s rating for conventional .308-class threats. A 5.45x39 round is also introduced into the mix. One of the shooters expects it to punch through based on the cartridge’s reputation, but instead it cracks the plate while being contained, which surprises the team and leads them to plan more focused 5.45 and 7.62 testing on the same armor.
Additional shots on the Guard Dog Level III plate produce unexpected results. Multiple 5.45x39 rounds with steel components in the projectile are fired, and the plate manages to stop them, leaving only small entry marks on the strike face. The rear of the plate shows significant bulging, but there are no complete penetrations into the ballistic dummy. This contradicts the assumption that 5.45 with a hardened core would easily defeat Level III. The hosts then revisit 62-grain green tip on the same, now heavily damaged plate. Despite an earlier failure, subsequent hits result in the steel insert being recovered deformed from the front of the plate, with no new through-holes into the dummy. The plate is visibly cracked and compromised, yet still catching projectiles in some locations. The hosts emphasize how impact placement, angle, and prior damage dramatically affect outcomes, and that even non-rated threats like certain 5.45 and green tip loads can sometimes be stopped in real-world conditions.
Attention turns to a Guard Dog Level IV ceramic plate. The hosts start by sending three closely grouped 7.62x39 rounds into it. The cluster of hits creates a concentrated damage zone and noticeable backface deformation, but inspection shows no complete penetrations. Next, they fire three 62-grain 5.56 green tip rounds into another area of the same plate. Despite the steel inserts and cumulative damage, the Level IV armor again prevents any through-and-through hits, though the rear surface displays pronounced bulging that would translate into severe blunt trauma for a wearer. Finally, they prepare the plate for 5.45x39 7N6 impacts. These rounds, known for their challenging behavior in armor tests, are stopped when they strike intact ceramic regions, though the plate exhibits extensive cracking and additional bulging. The sequence demonstrates that Level IV plates can handle multiple intermediate-caliber rifle hits in undamaged zones, but that each impact degrades the ceramic and reduces protection in that specific area.
The hosts use further 5.45x39 7N6 shots to illustrate how ceramic armor fails when a particular section is overworked. They deliberately fire into a region of the Level IV plate that has already absorbed several 5.56 hits. In this compromised zone, the 5.45 rounds finally penetrate through the plate and into the ballistic dummy, though they still do not exit the back of the dummy. Moving to a fresh, untouched quadrant of the same plate, another 5.45x39 round is stopped cleanly, with no backface penetration. This contrast shows that ceramic armor is designed to take only a limited number of hits in a given spot, while other areas remain protective. The hosts reiterate that Level IV is rated to stop .308 and, when intact, should also handle 7.62x39 and 5.45x39. To reinforce the performance of Level III, they fire a .308 round into a Level III plate and then compare the large backface bulge from .308 to the smaller deformations from 5.45 and 5.56, confirming that the plate still meets its stated rating despite the dramatic blunt-force signature.
After the live-fire sequences, the hosts perform an "autopsy" on a shot-up plate by peeling back layers to show internal damage. They point out distinct impact zones from 5.56 and 5.45, noting that both calibers tend to create relatively narrow but elongated damage paths through the polyethylene and composite backing as they yaw and fragment. In contrast, a .308 impact produces a much larger, more dramatic bulge in the backing, yet the projectile itself only travels about halfway into the plate before stopping. This side-by-side view underscores how bullet diameter, construction, and velocity influence how armor absorbs and spreads impact energy. The hosts explain that smaller, faster rounds can sometimes pose a greater challenge to certain armor levels than larger, slower projectiles, even when all are technically stopped. The internal cross-section ties together the earlier results by showing why backface deformation and internal damage patterns can differ so much between calibers.
The discussion moves to a direct comparison between a Guard Dog Level IV plate and a Level IV Plus plate. The hosts explain that the Level IV Plus uses more polyethylene and ceramic than the standard Level IV, increasing both weight and protective margin. They clarify that the soft backing material is polyethylene rather than Kevlar, and that the ceramic strike face is designed to shatter and slow the projectile while the polyethylene layers catch and distribute the remaining energy. This combination is intended to handle higher-energy rifle threats and multiple impacts better than a basic Level IV plate. The hosts address common misconceptions about plate construction and emphasize that while ratings are based on standardized tests, real-world performance can exceed those ratings in some scenarios. With that context, they set up an extreme, beyond-rating challenge for the Level IV Plus plate using a .50 caliber rifle.
For the finale, the hosts bring out a Barrett rifle chambered in .50 BMG and position a Guard Dog Level IV Plus plate at roughly 10 to 15 yards. They stress that the plate is not rated for this level of threat and that this is a torture test purely for demonstration. A .50 BMG full metal jacket round is fired, delivering enormous energy into the ceramic and polyethylene structure. After impact, inspection reveals a massive crater on the strike face and a huge backface bulge with a deep cavity in the rear of the plate, but no complete hole through it. Technically, the armor has contained the projectile, yet the hosts are clear that a person wearing it would almost certainly not survive due to catastrophic blunt-force trauma. They close by highlighting how impressive modern Level IV Plus armor can be in terms of raw stopping ability, while reminding viewers that survivability is limited by human physiology long before the material reaches its absolute failure point.
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