By friend you mean a Ukrainian “engineer” whose name might be Louis.
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50 Bmg Blow up....
- Thread starter frank320
- Start date
Hi,
1st video
2nd video
He seems pretty straight about it. Admittedly saying he originally told Scott wrong.
Hell I got it wrong, as did you. The number is actually 161520.
3x safety margin...
Sincerely, Jaun
A Look at Bolt Lug Strength - Lilja
All action designers are concerned primarily with producing a safe and functional product. All other considerations such as weight, finish, eye appeal and other cosmetics are secondary. From a safety standpoint, the strength of the bolt lugs is of prime concern. Bolt lug shear strength depends...
riflebarrels.com
That number is based on literally nothing besides the word of some shady Ukrainian engineer with no description how that number was arrived at
Hi, 7! Your old BFG shooting buddy here. Got rid of mine last year.
I was wondering why you’re so interested in trying to tear him down. Because some clown on Youtube put a grenade in the chamber.
Please don’t projector your homoerotic fantasies on me.
Actually I paid for the testing…his dumb ass didn’t do the math on that one
That’s why I call bull on the 190k, I know what real simulations say
A 190k bmg receiver would be about 3” wide, along the lines of your forearm
Additionally the “threaded cap” design wears overtime unlike a properly timed action.
Every time you remove and replace the breech cap, those threads become worn..loose…weaker.
And as we all know of you use the same cap enough the first thread will be worn away, as we saw in the first video where he got blown up.
Nobody put a grenade in the chamber . He fired 12 of those "grenades "and no explosion. Why? Because it was a fresh rifle that had not been beat like the old one. My money is on metal fatigue. So why haven't more exploded? As has been said this guy has probably put more rounds through his then all other serbu owners combined. Yes all 10 of them.
This is a proper cannon breech action.
This is what his stupid ass was trying to achieve....without all the "complications" of a true cannon breech.
Serbu is just another dipshit money guy.
Only a complete idiot, would design and release such a piece of shit, as we see in these videos.
As others have rightly stated, it is literally, a pipe bomb.
You are safer firing taped 50bmg cartridges, in a 12gauge shotgun.
This is what his stupid ass was trying to achieve....without all the "complications" of a true cannon breech.
Serbu is just another dipshit money guy.
Only a complete idiot, would design and release such a piece of shit, as we see in these videos.
As others have rightly stated, it is literally, a pipe bomb.
You are safer firing taped 50bmg cartridges, in a 12gauge shotgun.
I have no connection to Serbu, thats your own paranoia.
I recognize what it is no matter how many times you insist I don't.
I still have all my fingers and toes.
.
Speaking of engineers... you guys don’t recognize that he (scott) pushed this thing outside of its design envelope?
19 pages and 930 posts in this thread...and we're asking questions already answered multiple times.
Potentially if some irresponsible youtuber puts a overpressured round in it...
The legal term you're looking for is "foreseeable misuse and abuse". It's something that any proper engineer should understand.
Wow....ok, others have said pipe bomb but to me this looks like nothing more than a glorified zip gun and has the potential to be just as dangerous. Kinda reminds me of this (LOL):
Early prototype
I would not only not shoot one....I wouldn't be anywhere near anybody who was.
Early prototype
I would not only not shoot one....I wouldn't be anywhere near anybody who was.
Well in this video he clearly isn’t taking ownership of anything and goes as far as saying that a gas port vent relief wouldn’t have changed anything.
I’m not an engineer but I was an airline pilot and I would have never ever handed over a plane to a colleague in a condition that could have caused them to face adversity, I certainly wouldn’t sleep well at night knowing that I have customers shooting my product and potentially seriously injured or kill themselves.
I do feel good knowing that my wife shoots a Nuke 2.0 and shares my Desert Tech, both have been shown to be able to take catastrophic failures without injuring the shooter. And again ... if you want to make your own zip gun, hey more power to you, but please don’t sell them to other people that lack the knowledge.
I’m not an engineer but I was an airline pilot and I would have never ever handed over a plane to a colleague in a condition that could have caused them to face adversity, I certainly wouldn’t sleep well at night knowing that I have customers shooting my product and potentially seriously injured or kill themselves.
I do feel good knowing that my wife shoots a Nuke 2.0 and shares my Desert Tech, both have been shown to be able to take catastrophic failures without injuring the shooter. And again ... if you want to make your own zip gun, hey more power to you, but please don’t sell them to other people that lack the knowledge.
I’m fine with thinking that the particular round of ammunition was “hot” or the action had fatigue.
I don’t think many are debating that idea as well.
The issue is the MFG and or Scott has not released a simple computer simulation that would cost 10k.
If he would at least do that 90% of the questions would be gone.
But they double down on non validated testing and procedures that do nothing but add information which isn’t useful.
Unless I missed it, the last video didn’t even use a chronograph to give us a idea of the current “high pressure” loads were in fact at a higher velocity. That on its face is a very poor relationship but it’s better than anything they have done thus far.
Doing that would at least lead us down the path that it was a “hotter load”
He had no clue what pressure it could take when he put it out. He still has no clue what pressure it can take when the gas is pushing against the whole cap face (case head separation). That is a huge problem.
Yes more data based information would be much better.
Especially when peoples lives and livelihoods are on the line.
Except mark isn't putting out data based information.
And he is putting others peoples lives on the line.
So I could not care less about his livelihood.
He has.
1. That cap should shear around 161,500 psi of force. ( mulit people say bullshit)
2. The round that blew up the gun the 2nd time was “estimated” to be around 190,000psi. Which caused failure very similar to the first. (Again people cast doubt)
3. The rest of the rounds that he(scott) fired where visibly and audibly higher pressure than a standard round. The cap being very hard to open and having to use vice gripes to get the brass out of the chamber.
Is that super scientific, no. Could it go deeper yep. Id welcome that. I personally think its pretty obvious something was not right with those rounds.
Id like to see what that last 190,000psi round would do to others. Guns fail occasionally not everybody has a YouTube channel with millions of viewers to broadcast it. Who else has a failure that gets put in the spotlight like this?
Hell 4 months ago I saw a guy destroy a Ruger 30/06 with his hand loads. Took some Shrap Metal and gas to the face. Lucky not serious. Nobody heard about it.
I don’t know about you guys but I love my Serbu rifles!!
The initial 161k is the problem.
It’s just math of thread strength via materials.
You can only get the true kpsi value by fluid dynamic simulation, then a subsequent physical destruction test.
The male and female threads are compressing AND expanding.
Bolt lugs don’t do that.
If the cap expands faster or slower than the male threads the contact and strength of that connection is not the same….stronger or weaker.
Bolt lugs are primarily compressive forces.
Think of a barrel tenon
If you put a too large /powerful cartridge in to small diameter barrel /action tenon diameter. The whole unit expands more than it should.
That expansion allows the case to expand more than it should and then the case gets squeezed back to the original chamber size. …now you can’t extract.
There is a lot more going on than just linear force math.
So by just putting numbers on paper, he is doubling down on his lack of engineering knowledge.
The cap shouldn’t sheer at all, because there shouldn’t be a cap!!!
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I feel I need to make another reference to a proper cannon breech.
A scew on "cap" isn't a cannon breech.....its a pipe bomb.
I can't see what Okaloosa Oliver is saying anyway. I have had his stupid ass on ignore for months now.
1. Should shear is an estimate and not data based information.
2. Estimated to be around is not data based information.
3. Where is the audio analysis of the rounds going off. Louder to the human ear is not data based information.
Actually the pipe bomb is more predictable as to when its going to go off (for the most part).They do have sort of a family resemblance, no? haha
Well, if you want to see how a Barrett handles an over pressure round, KB is at it again...
I think the most impressive “destruction” test was when I think it was Orkan who loaded his DTA 338 LM with pistol powder.
But yeah, any rifle can be made to blow up but my eyes or limbs (or life) are worth more than the 5000$ difference between a DTA HTI and a Serbu pipe bomb.
I was fairly neutral on Serbu until I viewed his video about him laughing about a 50cal ND in his shop and his total lack of knowledge of how much pressure his rifle can withstand. Just not really impressed by his “professionalism”.
The rifle was fresh, the barrel was new and specifically chambered for slap rounds. While the threads did in fact fail it was not
due to round count.
This will never be solved, no way to verify the history of the ammo and now he used the ammo any forensics data that could
of possibly explained why the rifle breech failed.
The biggest question is why did Serbu not arrange to have the ammo sent to a lab to test??????
This should of been first priority, instead he sends another barrel to a knucklehead to blow up.
WTF
Improper use of term.
In future, please refer to ButtFuck 50 loading port as "pipe bomb cap".
Thank you for your cooperation.
I'm sorry, I can't watch this dude's videos.
Did the Barret put him in the hospital?
I find it quit hilarious and sad Anyone would claim that the Barret failure is somehow safe!
That pice of steel With the blue arrow pointing at, would’ve smacked you in the face potentially breaking bones like maybe your orbital socket and jaw.
The two pieces highlighted in the yellow and red circles, although they are directed away from the shooter, are deadly projectiles.
Here is one of two pieces of Shrap Metal that ended up inside the dummy that could’ve easily gone into a neck and cut a jugular.
There’s some salty dick sucking fucks in here
The two pieces highlighted in the yellow and red circles, although they are directed away from the shooter, are deadly projectiles.
Here is one of two pieces of Shrap Metal that ended up inside the dummy that could’ve easily gone into a neck and cut a jugular.
There’s some salty dick sucking fucks in here
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Yup, the Barrett failed in a very dangerous manner. Your face would have been right up against the upper receiver when it blew upward. Your face most likely would have sustained some serious blunt force trauma and burns. The Barrett shot shrapnel back and to the sides which would have been dangerous to both the shooter and any bystanders.
Wow, while I do think @GreenGO Juan leads the pack in "salty dick sucking fucks" in this thread, I do agree that this is not what I would consider at all to be a safe and controlled failure.
Now, did I not hear on the vid that this gun was "partially damaged" in a lab test prior (note, what was damaged is not detailed by KB). So, no telling the accumulated stress on the pressure containment areas. I note that on trapshooters.com, thre is often assertions about Krieghoff K-80 not being safe and blowing up. On any skeet shooting forum, this is NEVER discussed because they don't blow up with their loads. Some handicap trap shooters load fucking mortar shells and its the accumulated stress, IMO, that eventually causes failures in a gun never seen in any other discipline.
And, yeah...ok, I get it. The bullet seems to have vaporized??? I looked very closely and never saw any sort of real flash coming out of the end during the shot...at all. I don't get how this gun could have blown up as it did without first moving the bullet down the barrel at least partially. This would be the path of least resistance, no?
Finally, am I right that it was previously discussed that there didn't seem to be any analytical support for this load (whatever the fuck it was) yielding 190k PSI.
This is just some dumb shit, IMO.
Now, don't get me wrong...KB seems like he's be a great guy to drink some beers with. Energetic, seemingly happy kind of guy. And, he's probably making a lot of $$ from these type of vids. And, I am very glad he recovered from his wounds from the RN-50 blow up and seems to be fine.
Nonetheless, I'm not sure I would want to be on the line next to him....no, I am sure...I don't want to be! haha
Now, did I not hear on the vid that this gun was "partially damaged" in a lab test prior (note, what was damaged is not detailed by KB). So, no telling the accumulated stress on the pressure containment areas. I note that on trapshooters.com, thre is often assertions about Krieghoff K-80 not being safe and blowing up. On any skeet shooting forum, this is NEVER discussed because they don't blow up with their loads. Some handicap trap shooters load fucking mortar shells and its the accumulated stress, IMO, that eventually causes failures in a gun never seen in any other discipline.
And, yeah...ok, I get it. The bullet seems to have vaporized??? I looked very closely and never saw any sort of real flash coming out of the end during the shot...at all. I don't get how this gun could have blown up as it did without first moving the bullet down the barrel at least partially. This would be the path of least resistance, no?
Finally, am I right that it was previously discussed that there didn't seem to be any analytical support for this load (whatever the fuck it was) yielding 190k PSI.
This is just some dumb shit, IMO.
Now, don't get me wrong...KB seems like he's be a great guy to drink some beers with. Energetic, seemingly happy kind of guy. And, he's probably making a lot of $$ from these type of vids. And, I am very glad he recovered from his wounds from the RN-50 blow up and seems to be fine.
Nonetheless, I'm not sure I would want to be on the line next to him....no, I am sure...I don't want to be! haha
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What I'm really curious about is what is the makeup of that supposed 190,000 psi round that KB is using to destroy these rifles. Is he filling them with a fast burning pistol powder, or is he using an actual explosive?
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