I own MAGNUM AIRPOWER and the .com by that name. Because of this incident I
have been getting a lot of questions about the safety of PCP guns. I viewed
the original video and this one after several customers expressed alarm
over it. You used a Discovery valve with one single Discovery valve screw
holding it in. The tube clearly only has one screw hole on the bottom for
the Discovery valve screw. You converted the gun to PCP using a HiPAC but
you cut part of that HiPAC off so that the 2400KT tube was pressurized.
First mistake, the Discovery screw was never meant to handle 2000 PSI by
itself. The Discovery model uses three of those screws to handle that same
amount of pressure. Second mistake, you were taking the gun apart while it
was pressurized with 1800-2000 PSI. The gun was completely disassembled
except for the pressurized tube assembly and the trigger frame. You say the
gun exploded when you were removing the trigger frame. The end cap and
striker had already been removed so only the front trigger frame screw was
left. The single valve screw had already failed so that front trigger frame
screw was the only thing keeping that valve in the tube. When you started
to remove that screw the valve shot out of the tube like a bullet. At the
moment of failure the tube shot up into the ceiling like a rocket and the
HiPAC was broken off on impact. You've got a lot of people terrified of PCP
guns now because of all the confusion and hype over this incident. I really
hope you eventually realize this was a simple accident that was your own
fault. It wasn't the HiPAC at fault and PCP guns when handled properly are
not dangerous. You seem like a good man and I sincerely don't believe the
video is a hoax. I'm just sick of answering questions about it and wish you
would put it to rest already. I am glad you were not more seriously hurt in
this learning experience.
+AirgunsWorld - I felt I needed to explain it in detail for those who don't understand the mechanics of the gun that failed and why it failed. Some comments from others covered the valve screw issue but the overall picture wasn't very clear to the average reader/viewer. Your response and honesty is greatly appreciated and I hope this can all be put to rest now.
+William Baldyga - Yea we realize all this, you didn't have to type all that as it is frIgin OBVIOUS WHAT HAPPENED ... but it's always easy to be an arm chair quarter back because you have no accountability like we have making the mistake and then owning up it to it. Anyway, I would give comfort to your viewers about PCP guns that are made at their respected company factories and not mashed together like we did. Hence the problem. Factory spec PCP air guns are quite safe but still need a bit of caution when handling.
Bottom line is "don't screw with the HiPAC". The wall thickness at the
break point may raise a question, as does altering the HiPAC to work in a
manner for which it wasn't designed. Considering that in five years and
only one separation to ever occurred. My expert has a different opinion
which makes more sense, and says that the unit being altered by the user as
the cause of the break, due to tooling. Tooling marks on the broken parts
clearly indicate that the unit was squeezed into a vise causing the metal
to flex.
+PowerMax-HiPAC.com - When thew HiPacs blew up, he was holding the gun in both his hands. It was never put into a vise then or ever. He doesn't even own a vise. Your tooling thin walls and telling everyone that it will hold 3000 psi is the problem. Believe what you want. Your crap product is the problem.
Thanks guys,very helpful!The info in this video might safe some people's
lives.However,my brother bought benjamin pump and hipac with 2 ext. and
when he put everything together,up to 2000psi,the velocity was almost as
twice as slower than with a regular 12g co2.Could it be the issue with the
seal on factory valve that still remains the same as for co2 or something
else??Thanks for any advise!!
you need to remove the piercing pin on the valve stem and increase hammer spring either with a power adjuster or a stronger spring. after I did that, my 2250 went from 580 fps to well over 750. it waste so much air though.
Randy, I sure you are aware that many airgunners are trying to figure out
just what happened. Could you please answer 2 questions for us.1. When the
gun exploded, was it ripped from your hands and thrown across the room?2.
If that is the case, where did the gun (tube) end up, and did it hit
anything on the way there?Thanks.... Bob
After looking over our broken air gun, the owner of the Ashland Air Gun Range with over 30 years of air-gunning, has determined that it was the HiPacs that failed first and the massive rapid change in air hit the air valve like a hammer and then it let go. This is the same as we think, that it was the Hipacs that failed first. I recommend not getting them.
+AirgunsWorld - Thanks again for the clarification.... We are then faced with a very strange situation where two failures apparently occurred simultaneously, not one and then the other.... If one part had failed first, then the pressure release would have reduced the likelihood of the second failure....That means we have to look at each failure separately.... Thanks again for your help.... Bob
The HiPac was not bumped, touch and impacted anything when it blew up. We took our second HiPac gun apart and noticed how thin it was at the point of breakage with an unbroken one.
+AirgunsWorld - Thank you for the clarification. Do you feel that the HiPac, while still connected to the gun, had the opportunity to collide or impact with anything, which might have added to the chance of it breaking through the O-ring groove?.... Bob
+Bob Sterne - The HiPac tube went into the ceiling as seen in the first video (https://www.youtube.com/watch?v=a1hrms0i2LU), the valve went into Randy's leg and the gun itself just hit the ground below Randy's feet.
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Hello, im from chile, i want buy a rifle .22 to hunt rabbits and birds
i want to ask you what rifle i have to buy:
Air arms s200 10
Umarex r8
Benjamin marauder
Sumatra
Yoy can make a list
wich you recomend ne between this rifle
Make me a top 3 please
Tanks
PD: if you now other rifle for the same prize, let me now
It's an innovative design, surely the stock is so large, perhaps it needs
a reservoir built in there.
Imagine having a large gas container in there with a tube leading up to the
firing mechanism. The home made US airguns seem to do this. PCP is the way
to go.
how many shots did you need to take before your Benjamin stopped dieseling?
I have put 50 through already and it still smokes, and sounds like I am
shooting a black powder rifle!!! the power is amazing but I wonder if that
is due in part to the added help of the dieseling.After putting the first
25 shots through(in my basement) I needed ear plugs !! my ears rang for
about 4 hours!!! The accuracy is getting better with every 5 round
group,and I added some aquarium floss into the baffle to try to reduce the
muzzle report.I may try to reduce the size of the opening at the muzzle
end(shroud screw hole, is much larger than .25 cal) with foam rubber
washers.
+wayne stirling lol thanks for the correction i said register but i meant the licence. so they allow shrouds. or is it the canada legal shroudless version. happy shooting
No they don't need to be registered (long gun registry was abolished some years ago),however I did need an FAC(firearms acquisition certificate) to purchase it.and it seems to have settled down a bit now that I have more pellets through it.
+wayne stirling don't pellet guns in Canada of this velocity need to be registered as firearms.... and to boot aren't pellet guns with shrouds highly illegal in Canada?
Excelente video! amigo tengo un Bejamin Armada, es el mismo que el
marauder, pero sabes como desmontarlo de la estructura? lo que pasa es que
salio caro y me la pienso para intentar desarmarlo sin ayuda.
Saludos!
Muy buen video! Ambos la verdad.
Tengo un Marauder, un día lo llené con unas 2700psi, a los dos dias lo fuí
a usar y ya no tenía presión en el tanque. Trato de volver a llenar el
tanque y pierde el aire por el cañón. Ya ordené el kit de o-rings para
cambiarlos todos, espero que se corrija el problema.
Se ve que sabes bastante del tema, si tienes una idea de que puede ser lo
que le pasó al mio, agradecería cualquier ayuda.
Pura vida! Saludos desde Costa Rica.