- Joined
- Jun 25, 2020
To be fair, Tex Grebner radically changed his life around after that incident. He's probably in better shape than most of the people who still make fun of him over it.
General GunTuber thread
- Thread starter Trig.Point
- Start date
SmokeyMcRunFast
kiwifarms.net
- Joined
- Aug 17, 2020
I do want to see the root cause analysis write up for this. That being said I think FW did bring up a valid point that most firearms designs have failure points built in to mitigate injury to the user in the event of catastrophic failure. The design of the SB-50 sacrifices some of this in the name of cost.
At the end of the day assuming Serbu is telling the truth and the failure limit of the threads is 85,000 PSI there isn’t a gun made that could contain that. The best someone could have hoped for is firing it in an M2 where the shear amount of extra metal between you and the detonation would directed the blast up and not back.
At the end of the day assuming Serbu is telling the truth and the failure limit of the threads is 85,000 PSI there isn’t a gun made that could contain that. The best someone could have hoped for is firing it in an M2 where the shear amount of extra metal between you and the detonation would directed the blast up and not back.
- Joined
- Feb 27, 2019
Tao "We have 1000 subscribers paying us at least $1/month but we're still going to bellyache and cry after all of our videos that we're sooo poor" fledermaus, you say?
I like their videos but Jesus Christ, Jeff, give it a rest already.
Uranus Pink
kiwifarms.net
- Joined
- Mar 6, 2019
Isn't Fledermaus a cop? Cause I seen too many fudd cops terrified of fellow "civilians" having freedom and guns.
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- Joined
- Feb 27, 2019
He isn't directly in law enforcement, but according to him his job involves working with (IIRC Federal) LE on a regular basis.
OG is, of course, a local cop.
- Joined
- Nov 10, 2019
I will give him credit for that. I remember he was going out in the woods and squatting big ass stones. Some reject modernity shit right there.
- Joined
- Sep 27, 2018
I do wonder how Serbu is going to respond to this. He and his design just got a lot more free publicity than he ever bargained for.
- Joined
- Jun 5, 2020
I'd add a few more threads to that endcap, but what else could you really do against 85k psi anyway?
- Joined
- Feb 24, 2019
With how much he talks about demonetization, making targets on the cheap, and not being able to afford this or that, I'm kinda surprised you can't see his nose clipping into frame of the camera.
Still has some really great videos, but its never a first watch.
- Joined
- Jan 15, 2019
I know nothing about modern firearm design, but I do know that the history and development of Sabot rounds showed they struggled to be used with Muzzle breaks, which is one of the reasons modern tanks don't have them fitted.
In UK service the M2 used Ball and Tracer, while the Barretts used by the engineers had AP-I rounds. I'm not sure what exactly the point of a Sabot round is at least in a military setting, as the range is going to be massively reduced by the lighter projectile.
Anyway a massive over pressure cartridge, and a projectile designed to come apart, what could go wrong.
- Joined
- Jun 25, 2020
I think he's a bow hunter now too. Understandable given what happened but that dude can probably Rambo : First Blood Part II some motherfuckers nowadays.
SmokeyMcRunFast
kiwifarms.net
- Joined
- Aug 17, 2020
Change from V form threads to buttress threads. Buttress threads trade increased load capacity in one direction for decreased load capacity in the other. They are a standard thread form so tooling is available commercially and the two common uses are on leadscrews and cannon. They were originally known as breech-lock threads because of their use in firearms.
- Joined
- Feb 18, 2021
It allows you to do something that counteracts the range reduction in using a light for caliber projectile. Usually the lower mass not only gives the projectile lower inertia, but you also retain the original frontal surface area. It's going to be shorter unless you use filler material and the stubbier the projectile the worse its ballistic coefficient is going to be as well. As long as it's designed right, with a sabot releasing the payload right off the muzzle you can send a high velocity projectile that's got less drag than the original and potentially an even better ballistic coefficient.
If he's going to offer buyers a recall and fix I don't think making the endcap failure-proof is the issue, making it so that the failure doesn't hit the shooter in the face is the priority.
Those out-of-battery safety ears are a massive problem. The quickest fix I can see to existing rifles is replacing the receiver side plates to get new ears. Extending them towards the rear will prevent the small pieces shearing off, maybe designing a controlled failure where they bend to the sides to absorb energy from the cap flying back.
- Joined
- Feb 26, 2019
When those SLAP rounds were produced, long-distance small unit combat in places like Afghanistan wasn't really envisioned; they were still thinking of a Fulda Gap-type scenario in Europe or Korea Part Deux, with hordes of APCs for targets. Range wasn't exactly a priority, and they were never intended to be fired from small arms.
In any case, if that kaboom had occured in an M2, I'm not even sure those barrel threads & barrel itself would've been able to contain the pressure; though I highly doubt the bolt & receiver would've been the failure point.
I've never been a fan of shooting ammo in things for which they weren't intended (aside from .38 in a .357), and I'm definitely not a fan of shooting scarce/rare/out-of-print ammo, but people shooting SLAP rounds is lunacy, period.
- Joined
- Jul 12, 2020
Ian had his own exploding gun video, heavily featuring his autistic buddy. Guess you don't need no Israeli trauma bandages, long as you got one good ol' Texas thumb to plug into your artery.
If a guy outright says he wouldn't upload a video if he castrated himself with a 20-gauge, there's little reason to stay subscribed. Go unload trucks if you don't wanna be a 21st century dancing monkey.
- Joined
- Mar 12, 2021
Those ears might actually be why he's even alive, in a paradoxical way. Though one of them almost hit his head, and the other sliced him open good, the breech plug having to break those off may have reduced speed enough that the thing didn't crash through his face and into his cranial cavity.
I'd say I could think of some ways to improve the RN-50, but all of them involve turning them into the BFG-50 that Serbu already makes, which is a perfectly good single-shot .50BMG
Someone asked me if it would be possible for him to 'save his skin' by offering people the option to trade in their RN-50 rifles in exchange for an equivalent value discount on a BFG-50. Some people might appreciate that gesture a lot, but I'm not sure that's economically feasible for him to do.
- Joined
- Jun 5, 2020
I recall years ago reading some old farts talking about certain lever actions and the nice feeling of "a wall of steel between you and the breech" – they were clearly not wrong.
I wonder if the ears are steel or aluminum. Might be a good idea to drop the bauxite and hopefully, as Gaben said, it would be worth the weight.
- Joined
- Jul 8, 2020
Moral of the story: if you're going to be shooting sketchy old weird ammo, don't do it with a gun designed by someone who looks like this:
- Joined
- Feb 18, 2021
Serbu's response
The reviews are in
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- Joined
- Mar 12, 2021
I've seen people speculate that the load which busted the gun must have been in excess of 100,000 PSI, probably double of the normal operating pressure for .50BMG, the RN-50 itself is rated to hold up to as much as 85,000 PSI.