Benj Marauder & hand pump


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MErl
November 11, 2013, 08:35 PM
I'm looking at picking up one of these as a rifle training aid and have a couple questions. This seems a reasonable quiet option to use indoors or the back yard.

Is this feasible? I'm looking at a PCP since recoil is still straight back. Seeing comments about artillery holds for springers tells me that is a different skill (with some overlap).

How bad is using the hand pump? Are we talking 100 pumps for 10 shots? More? Less? Other option is a tank and tracking down a fill station which would at minimum double the cost (and I'm not so sure about fill stations with no water around). Is the tank really required to fully use a PCP gun?

Any other pertinent comments are also welcome.

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zdc1775
November 11, 2013, 09:10 PM
Can't help you much on the pump side but you can get the tanks filled at most paintball fields and some fire stations as well as SCUBA shops.

gravelyctry
November 11, 2013, 09:58 PM
I don't think the pump is bad at all. I can easily shoot 40 shots without seeing any change in impact in my basement range, approx 20 yards.

My dad got one, and he's about 75. He's also got arthritis, and the hand pump was not something he cared for at all.

The Marauder is a pretty sweet gun IMO. Neil

RandyRay41
November 11, 2013, 11:29 PM
,..

RandyRay41
November 11, 2013, 11:31 PM
Curious as to what you do when you go hunting with the Maurader? Would you take the pump in a back pack?Surely you won't strap a SCUBA tank to your back. Would you go back to vehicle to reload pressure. I like the Maurader as well and I believe it may be my next one, though down the road a ways.

How many shots do you get? I heard 10 20 you say 40 with no decrease in accuracy. Is it only loaded with air or can you use CO2 or Nitrogen like in a paintball gun?

Maybe the Previous poster does not hunt at all. Anyone's ideas or experiences would be appreciated.

JohnKSa
November 11, 2013, 11:59 PM
It can be used with air or nitrogen. The Marauder can not be used with CO2.

In addition to the large SCUBA type tanks, there are also carbon fiber tanks available. They are generally lighter and stronger than the SCUBA tanks which means they can hold more air (higher pressure). Also, there are a variety of sizes available--some of the smaller ones can be easily carried in a backpack.

zdc1775
November 12, 2013, 09:13 AM
Curious as to what you do when you go hunting with the Maurader? Would you take the pump in a back pack?Surely you won't strap a SCUBA tank to your back. Would you go back to vehicle to reload pressure. I like the Maurader as well and I believe it may be my next one, though down the road a ways.

How many shots do you get? I heard 10 20 you say 40 with no decrease in accuracy. Is it only loaded with air or can you use CO2 or Nitrogen like in a paintball gun?

Maybe the Previous poster does not hunt at all. Anyone's ideas or experiences would be appreciated.

You would buy something like this (http://www.ninjapaintball.com/dura68.html) and use it to refill during the day. It's small enough to fit in a day pack, wear on a sturdy belt, or sling over your shoulder like a messenger bag. It should give you about 8-9 refills and you will get about 20-30 shots per fill depending on your tune and caliber.

MErl
November 12, 2013, 09:29 AM
I don't think the pump is bad at all. I can easily shoot 40 shots without seeing any change in impact in my basement range, approx 20 yards.

how much pressure drop is there for those 40 shots and how long does it take to pump back up? Bike tire or truck tire?:)

Pete D.
November 12, 2013, 02:17 PM
Pumping the Marauder: I have the pistol version in .22 caliber. I get three magazines shot before I stop for a refill......that is just the way that I do it. The gun could shoot more shots...I stop at 24.
I had two HP hand pumps from my other PCP gun. It takes some effort to pump, nothing that will wear you out but it is work, especially if you are pumping up the 3000 PSI. I am guessing that it takes about 80-100 pumps to raise pressure about 1000 psi. The higher you go the harder it gets and the less the pressure gain per pump.
A scuba tank is very convenient - also increases your investment substantially.
The best tanks are the 4500 psi carbon fiber jobs ($$$).

craftsman
November 12, 2013, 03:51 PM
MErl,

I recently got my Benji Marauder .22. It came with 500 PSI. I hooked up the recommended hand pump (got a great deal at the time, from PyramydAir) - here's my calculations. 20 PSI per pump. 50 PSI per shot. To get it up to 2500 PSI took 100 pumps. A 10 magazine cartridge drops it 500 PSI. Recoil is negligible, if any. It comes with no sights - but I previously bought the Beeman RS-2 dual caliber which comes with fibre optic iron sights, a case, rings and a 3x40 scope, which fits on the Benji - win-win!

Neither bike nor truck tire pump - drop the budget and get the recommended pump, with the quick release female foster fitting, and the filter to keep moisture out of the gun resevoir. We're talking big bucks - but with proper care and maintenance, this will be passed down to your grandchildren, and even their grandchildren.

Pumping gets a bit more difficult as you approach 2500 PSI, but do not exceed 3000 PSI. I'm pushing 200 lbs. and it is an efffort for me to get those last few squeezes in above 2500 PSI. So - 20 pumps per 10 pellet magazine.
Read the owner's manual (online at Pyramyd) - it'll tell you how to tune the rifle for either more power (more pumps) per shot, or more shots (less power) per PSI.

Pete D.
November 13, 2013, 06:45 AM
I recently got my Benji Marauder .22. It came with 500 PSI. I hooked up the recommended hand pump (got a great deal at the time, from PyramydAir) - here's my calculations. 20 PSI per pump. 50 PSI per shot. To get it up to 2500 PSI took 100 pumps. A 10 magazine cartridge drops it 500 PSI. Recoil is negligible, if any.
Is that the rifle? Your calculations may well be more accurate than my guess.
Pete

MErl
November 13, 2013, 10:46 AM
Thanks. I'm not seeing any major complaints about the pump so I'll give it a try.

zdc1775
November 13, 2013, 09:40 PM
Craftsman you might want to try tuning your rifle some. My friend is getting ~30 fpe shooting JSB Jumbo heavies and is only using around 25-30 psi per shot. He fills to 2900 shoots 30 shots and is just over 2050 when he refills. I will see if he did any mods but I'm pretty sure the gun is stock.

Also don't doubt the 20 psi per pump average as that's exactly what he told me when I asked him.

minuteman1970
November 14, 2013, 03:36 PM
I have the .22 Marauder and the Hill Pump. The Hill is more expensive than the Crosman pump, but was recommended on the forums due to ease of repair and excellent quality. I shoot my Marauder now instead of .22LR, due to lack of ammo.

It takes me about 95 pumps to go from 2000 PSI to 3100 PSI. I shoot exactly 50 rounds each session. The gun is VERY accurate, although a bit heavy.

Icky The Great
November 15, 2013, 07:22 AM
MErl,

I have had a Marauder in 22 for about 2 years now. Forget the hand pump. My friend has 3 Benjamin PCPs and the hand pump. One outing with me and he went and bought a tank and adapter.
I use SCUBA tanks, I also do SCUBA so its a no brainer. Tanks are easy enough to transport in a trunk for refills. Takes me 30 sec to charge my gun. Get about 50 shots, 40-45 are the most accurate. I charge to 2850-2900 PSI. You can find many used SCUBA tanks for cheap. Make sure it is Hydro tested and certified. I paid $40 a tank for 5 tanks recently. My designated tank for the gun seen me through many gun refills without issue, not certain of exact number per tank but a lot. To refill my tank it cost $6.00. I know, hold on to your wallet, right!

Good luck and have fun. A few links for your consideration:
This fella has a ton of air rifle vids to check out.
https://www.youtube.com/watch?v=J_rrZWaFqbI

hockea
November 17, 2013, 10:44 AM
I have one and recommend it highly.
I had to skeletonize the stock. and FWIW you can use CO2 in it.
http://www.pyramydair.com/s/m/Benjamin_Marauder_Air_Rifle/1774#Specifications

JohnKSa
November 17, 2013, 08:01 PM
I had to skeletonize the stock. and FWIW you can use CO2 in it.That's very interesting. Crosman's website makes no mention of the Marauder having the same "dual fuel" capability that the Discover has.

You are correct. The Marauder can be used with either CO2 or high-pressure air.

MErl
November 17, 2013, 09:49 PM
Well, got to try it today, pump is not an issue. No mag or manual in the box, now that is an issue... It is interesting above ~2200psi, I can lift my feet off the ground pumping it but it is not so many pumps as to be onerous.

d2wing
December 6, 2013, 03:05 PM
For just target practice you might consider a quality co2 gun. The Daisy 10 meter rifles are real accurate, amazon sells the pro line target for about $120.

Hawk 3/21
December 25, 2013, 04:20 PM
????It is a co2 rifle already. Why buy another one? While the fps drops a lot, the shot count also increase significantly

TonyT
December 29, 2013, 10:54 PM
I shoot an FX Royale 400 which has a 400cc air reservoir. It takes me about 125-150 pumps to go from 130 to 220 BAR. The Marauder has a significantly smaller reservoir so the pumps required should be fewer.

MErl
December 29, 2013, 11:19 PM
I have not adjusted any settings from stock. 30 shots will take it from 3k to 2k. Works out nicely that there are 15 targets per sheet of paper I'm using so two strings then pump it back up and set aside ready for next time.
I have no regrets going with a pump over other options.

Hawk 3/21
January 3, 2014, 09:41 AM
For practicing in the backyard hand pumping could become a pain, but unless your hunting nuisance birds, I don't think you're really going to need to refill mid-hunt. Do you use more than 20 rds hunting with a 22lr? If not, then you still have a cushion of 5-?????.

How many shots per fill with be determined on how you set up the power usage. Use all your knowledge of P/Bers. The twist is constant. You have pellet weight & fps that are adjustable. So if you shoot a lighter pellet you will probably not to reduce the air used with each shot or the fps will increase so much that the twist will destabilize the pellet. A heavy pellet with low air and you may not have enough twist to stabilize and accuracy suffers.

This is the beauty of being able to adjust air pressure per shot. With a springer you have to find the pellet it likes. With the adj pcps (even the discovery can be modded) if you need a higher shot count, adjust the air per shot down & test diff pellets for accuracy. Naturally, since the twist fixed and each pellet has a max & min velocity that it performs best, you'll probably find a lighter pellet is more accurate.

So limit the size of the game or the max distance you shoot. Now if distance is limited, you may still use a heavy pellet. For instance at 25 or 50 yrds the heavy pellet is just as accurate as the lighter at 100. Know the outside limits with each set-up.

Personally I like accuracy over distance. A lot of posters have their marauders set up for max power & shoot the heaviest pellet possible at optimum speed for accuracy & only get 20 shots. If your only shooting rats in the barn this would be a horrible setup for. Great for larger game.

So imagine you've entered the world of reloading, know you are working up loads for different scenarios. Varying bullet/pellet weight and changing powder weight/air-per-shot to customize loads.

If you go for max power & a higher refill rate then you're likely to hate the pump. Most posters consider the pump to be only marginally usefull with 3000 psi tubes. However, I believe this is a case of "it's not the size of dog in the fight........" If the money is do-able and a refill station nearby then the 4500 psi carbon fiber tank is definitely the easiest. Remember with the smaller scuba tank you will get less refills before it is below 3000 psi. So if any tank has dropped to 2700 then that's all that going in the rifle, therefore your shot count before you need to refill again will be less.

Hawk 3/21
January 13, 2014, 12:38 AM
[QUOTE=Hawk 3/21;9278315]For practicing in the backyard hand pumping could become a pain, but unless your hunting nuisance birds, I don't think you're really going to need to refill mid-hunt. Do you use more than 20 rds hunting with a 22lr? If not, then you still have a cushion of 5-?????.

How many shots per fill with be determined on how you set up the power usage. Use all your knowledge of P/Bers. The twist is constant. You have pellet weight & fps that are adjustable. So if you shoot a lighter pellet you will probably not to reduce the air used with each shot or the fps will increase so much that the twist will destabilize the pellet. A heavy pellet with low air and you may not have enough twist to stabilize and accuracy suffers.

This is the beauty of being able to adjust air pressure per shot. With a springer you have to find the pellet it likes. With the adj pcps (even the discovery can be modded) if you need a higher shot count, adjust the air per shot down & test diff pellets for accuracy. Naturally, since the twist fixed and each pellet has a max & min velocity that it performs best, you'll probably find a lighter pellet is more accurate.

So limit the size of the game or the max distance you shoot. Now if distance is limited, you may still use a heavy pellet. For instance at 25 the heavy pellet is just as accurate as the lighter at 100. Know the outside limits with each set-up.

Personally I like accuracy over extra power most of the time. A lot of posters have their marauders set up for max power & shoot the heaviest pellet possible at optimum speed for accuracy & only get only a few shots. If your only shooting rats in the barn this would be a horrible setup for. Great for larger game.

If you go for max power & a higher refill rate then you're likely to hate the pump. Most posters consider the pump to be only marginally usefull with 3000 psi tubes. If the money is do-able and a refill station nearby then the 4500 psi carbon fiber tank is definitely the easiest to transport. Scuba tanks are cheaper... don't know the cost of the valves, but it may be less than the $300+ you'll spend on a good hand pump. I've got the "cheaper" Benjamin pump for the discovery & when it's dialed in I probably won't hate it sooo much. Checking accuracy & shot count on mulp pellets.....make a tweak & start over.....hours turn to days. More pumping than shooting and that's on a disco. 3000psi Marauder, I'd rather poke my eye with a stick

Perhaps it's easier with the really expensive hand pumps.

Jaymo
January 18, 2014, 08:19 PM
The Marauder is very powerful, very accurate, and very quiet.
Three things I like.
Being a ten shot repeater is nice, too.

I use pump and scuba tank. The pump doesn't bother me.
You don't pump with your triceps, like a tire pump.
You bend your knees and use your body weight to pump it.
I'd rather pump a PCP that way than to pump a tire using my triceps.

HoploDad
January 25, 2014, 07:02 PM
I don't have a Marauder but would like one, the new lighter plastic stock with adjustable cheek piece looks great.

Regarding the thread topic: wasn't it an old Marlin tube-fed print ad that said, "Load on Sunday and shoot all week"? Those magazines held 19-23 rounds depending on choice of Short, Long or Long Rifle .22 ammo. I'd think that hunting one would not need to recharge. Plinking is of course another matter!

Hawk 3/21
January 26, 2014, 08:48 PM
[QUOTE=Hawk 3/21;9278315]For practicing in the backyard hand pumping could become a pain, but unless your hunting nuisance birds, I don't think you're really going to need to refill mid-hunt. Do you use more than 20 rds hunting with a 22lr? If not, then you still have a cushion of 5-?????.

How many shots per fill with be determined on how you set up the power usage. The twist is constant. You have pellet weight & fps that are adjustable. You may adjust for max acurracy or shot count. Mine gets more shots with heavy pellets.

If you go for max power & a higher refill rate then you're likely to hate the pump. Most posters consider the pump to be only marginally usefull with 3000 psi tubes if at all. If the money is do-able and a refill station nearby then the 4500 psi carbon fiber tank is definitely the easiest to transport. I've got the "cheaper" Benjamin pump for the discovery & when it's dialed in I probably won't hate the pump sooo much. Checking accuracy & shot count on mulp pellets.....make a tweak & start over.....hours turn to days. More pumping than shooting and that's on a disco. 3000psi Marauder, I'd rather poke my eye with a stick

Perhaps it's easier with the really expensive hand pumps.

NWCP
February 1, 2014, 05:39 AM
I would get a carbon fiber tank to fill your Benjamin with. You'll get awful tired of using the hand pump. In fact I'm picking up a second tank which is a bit larger to leave in my van in the event my smaller field tank runs out. I shoot a Marauder in .25 cal so it tends to suck up the air when in full power, which is where I keep mine. It develops just under 50 fpe with the pellets I use. I'd be careful with a PCP gun indoors, or in the backyard unless you have a really large yard, or a really good pellet trap in your basement, or garage.

The Marauder is the next best thing to a .22LR. It can flat push a pellet downrange so always be aware of your backstop. It will punch through your average cedar fence without breaking a sweat at 25 yards, or more depending on the pellet weight. Enjoy your new airgun. Once you've owned a Benjamin PCP you'll never go back to a Break barrel, or CO2 gun.

HankC
February 1, 2014, 09:38 AM
How loud is Benjamin PCP? My impression is PCP can really benefit from a can and less legal concern when built in. Benjamin PCP does not have a built-in muzzle device, is it loud for back yard shooting without getting attention from neighbors. I won't put on an aftermarket one and potentially get into situation that I need to defend it.

MErl
February 1, 2014, 04:10 PM
It is fairly quiet. I shoot it in a concrete basement (no soft surfaces) with no discomfort at all.
Not silent but it won't bring people out of neighboring houses wondering what is going on. Could probably cover the noise fairly well with a radio. I don't have privacy fencing so don't bother trying.

As for power, 2.5" of duct seal stop it well.

craftsman
February 14, 2014, 03:11 PM
Pete D, Sorry I have not responded sooner ... yes, that is actual from the gauges on the rifle and pump, as I filled and shot. On the PyramydAir website, and in the owner's manual, it tells you how to tweak it out (more or less power per shot, as your needs determine). So doing that will alter the numbers, so you'll need to record what you see if you follow thier directions.

craftsman
February 14, 2014, 03:31 PM
ZDC1775, thanks. I'm not a good enough shot yet to worry about tuning the Maurader.

Minuteman1990, I like that quote (Aim small, miss small) - where have I seen it before? Oh yeah, it is in my Sjambok book! LOL. http://www.cafepress.com/meijin3.651778457

I was watching the Sochi olympics Biathlon (Nordic ski and rifle) - amazing. Can't wait for the Summer Olympics to see the Air Rifle shooting. the US AirRifle team is composed of US military snipers - 5 shots into a circle smaller than a dime!

The Benji Marauder .22 is rated at about 89 dB ... if you're 100 ft. from highway traffic, overhead prop plan at 1,000 ft. 20 ft from a car wash; compare to normal conversation is 60dB, 133 dB for a gunshot.

If there is a need some day to "bug out", or like the TV series "Revolution" - then the pump will make more sense than the Scuba. Also helps keep you in shape. Pellets are a lot less expensive than bullets, too.

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