I read online somewhere and can't find the article now. ( but I will), that the Challenger, which is a red'd Mrod, can handle being filled to 3400psi.
Is that true, do people commonly do that?
Is that true, do people commonly do that?
Benjamin Marauder fill pressure question
- Thread starter bchannell
- Start date
The stated maximum fill pressure for the M-Rod and the Challenger is 3,000 psi. I do think it common practice to go 3200 psi. Depending upon your rifles tuning you may run into valve lock at the higher pressures. The idea (non regulated), when tuning, for power or for shot number, is to have a useful Bell Curve for velocity, not a water fall.
The only thing that keeps the valve in place against that pressure are those three Allen screws. Those support the valve and prevent it from becoming a rear firing mortar right at your face.
The only thing that keeps the valve in place against that pressure are those three Allen screws. Those support the valve and prevent it from becoming a rear firing mortar right at your face.
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Probably if you can open the valve. You're just removing a little bit of your overhead safety margin for even less of a performance gain than the safety was worth imho(and I'm not as averse to sketchy stuff as most people here) . I tried the heavy hammer and over filling my Gen 1 mrod when it was my only pcp and the gains weren't worth my trouble in a gen1 25. Max shot count for my wishes has never gotten better than 16
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I have an Airgun Revisions Challenger HFT, actually my second one, and third Challenger, and was just doing some reading, and found this info. I don't really have a need for higher pressure, but I do like to know the limits. I was just curious about fill pressure. I fully understand the fill pressure of unregulated rifles and that does not apply with the Challenger. Just curious.
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Do Not fill passed recommended fill pressure, even though the gun can handle the over pressure it may not work as intended, over pressure will cause Valve lock and cause un-needed stress on the Poppet, on a stock Marauder rifle, 3000 psi is maximum but the gun will usually achieve maximum FPS at 2800 psi, A challenger seems to be a different animal, it's a competition set up shooting at 580 fps and is Regulated, so my best answer to you is stick with the recommended max fill pressure, best for you and all around you.
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Kevin brings up a good point. I was filling slightly into the red and running a heavy spring back in the day and shattered a high flow poppet I've never tried to remake. With a regulator the only variable is the tube and the fill end threads and is a totally different thought experiment. That said, I trust the tubes on these guns more than the cheesy filter dryer tubes grim China that many people use above that pressure. Best of luck on your experiment.
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You can fill to 3400 without issues. Just use the gauge on the pump or bottle.
I need to specify that we are only talking about the 2021 Challenger and not earlier Challengers models without regs.
The Benjamin Regulators are the most robust in the market today. They can keep up to the semi auto action without needing a ton of Plenum. The belville springs are the largest in any Reg manufactured so 3400 is cake.
The only thing I would recommend is not keeping the Stock output set at 500psi. I personally don’t like a major variable in pressure from high side to low side on one tube.
I need to specify that we are only talking about the 2021 Challenger and not earlier Challengers models without regs.
The Benjamin Regulators are the most robust in the market today. They can keep up to the semi auto action without needing a ton of Plenum. The belville springs are the largest in any Reg manufactured so 3400 is cake.
The only thing I would recommend is not keeping the Stock output set at 500psi. I personally don’t like a major variable in pressure from high side to low side on one tube.
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What’s the load on the 3 screws holding the valve in? I wouldn’t push it past 3000 psi , regulated or not.
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You are the man! I knew I read that somewhere. I just recently got my hands on the second AR Challenger HFT, (I foolishly sold the first one, and still regret it) and was just reading up on them when I saw that mentioned somewhere. It's not like I need a great increase of shot count, just like to know the limits I'm working with. I fully understand this is only for regulated rifles.
I hate to sound like a fanboy, but you sure know how to build an airgun! These things are some of the most fun guns I've shot in a long time. Accuracy with Benji 10.5 single die pellets is nothing short of amazing. I love the thing.
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Well, we are dealing with a one inch ID or a little bit more. Those three screws are holding 1000 pounds each.
There was a test of the (after market) aluminum air tubes. I think it failed around 9600 psi. The aluminum tube wall sheared, not the screws. There is a good safety margin here with both the steel tube and those three screws. Less so with the aluminum tube. Steel does not really fatigue if not taken beyond elastic limits. Aluminum fatigues with every cycle and will be directly impacted by fill pressures.
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@Airgun-Revisions
What kind of adhesive does the factory use to secure the adjustment screw (part #9 on your schematic) on their regs? I recall that part on the one in my Marauder Regulated was made of a really slick plastic.
Thank you,
Chris
What kind of adhesive does the factory use to secure the adjustment screw (part #9 on your schematic) on their regs? I recall that part on the one in my Marauder Regulated was made of a really slick plastic.
Thank you,
Chris
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Is that the same regulator used in the Marauder F&T? I have had a couple of them leak at the #2 o-ring.
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@Airgun-Revisions - Rich is the guy to ask. I find that my regulated Marauder / and HFT challenger perform best <3000 psi and i refill at 1700 psi as i do notice a change in accuracy if i go below this pressure.... i think that the manometers (gage) are less than accurate which could be part of the problem...
Hey does anyone know a very accurate gage that fits the marauder / challengers?
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Yes and no. Same reg but different outputs.
That’s why I list both separately on the website or the third option being set at a custom output pressure.
I’ve replaced some under Warranty mostly due to them being compromised when installed from new. Other then that the ring could come forward a little if the high side gets depressurized faster then normal. Like something going wrong with the foster fitting or something at one point.
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Crazy right. Glade you enjoy. Getting more people up off the couch and shooting is what it’s all about.
Right now I’m seeing more and more husband’s and wife’s starting out and this gun perfectly fits both.
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