Problem with new Benjamin Marauder .25 cal.

Pumps, pre-charged, springers and everything else pneumatic.
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ShooterP14
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Problem with new Benjamin Marauder .25 cal.

Post by ShooterP14 » Thu Nov 24, 2016 3:24 pm

I hope someone can help. I just bought a brand new Benjamin Marauder .25 cal. and the highest velocity I've been able to get out of it is around 375 fps. I've seen a bunch of videos of people getting 850+ FPS. What is the average velocity "out of the box" for these guns? I've seen a lot of references to tune-up kits, but little useful information. I've done the adjustments indicated in the manual (hammer spring preload, hammer stroke, metering screw), but 375 is the highest I can get. Any ideas?
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Re: Problem with new Benjamin Marauder .25 cal.

Post by Metalsmith » Thu Nov 24, 2016 7:23 pm

What pressure are you charging it with? Hand pump? Scuba tank?

What pellet? More info will help.

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Re: Problem with new Benjamin Marauder .25 cal.

Post by ShooterP14 » Fri Nov 25, 2016 6:17 pm

Reservoir pressure is 3000 PSI from a scuba tank. The pellets are 24g domed.

I have seen a bunch of videos with people getting 800+ FPS from 31g pellets.

I called Pyramid Air and they suggested checking the barrel o-ring and it was ok. I did replace it just to be sure but it didn't make any difference.
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Re: Problem with new Benjamin Marauder .25 cal.

Post by pbansen » Fri Nov 25, 2016 9:57 pm

375 fps seems extremely low - the owner's manual says that a .25 can be adjusted up to 900 fps and it seems unlikely that from the factory it would be set to so low a velocity. You may void the warranty by adjusting it yourself, so it seems like the safest course of action would be to return it under warranty. Have you tried a Marauder-specific forum or just inquired here? You could ask at Gateway to Airguns http://www.gatewaytoairguns.org and see if someone there has encountered the same issue and how they solved it...

Good luck!!

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Re: Problem with new Benjamin Marauder .25 cal.

Post by Bob259 » Sat Nov 26, 2016 9:51 am

That's way to low, easily 800fps with that pellet should be the norm. I'd call the factory and talk to the tech department but I would plan on sending it back to get it done under warranty.
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Re: Problem with new Benjamin Marauder .25 cal.

Post by ShooterP14 » Sat Nov 26, 2016 3:34 pm

Thanks everyone. I was hoping this was a quick fix, but I guess not. I'm going to call Crossman Monday morning and see what they recommend.

-Pat- :(
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