Benjamin My other first PCP - Donated Gen 1 Maruader .25

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mariosjsk8

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Nov 19, 2024
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A friend of mine is a huge air rifle fan and donated his old gen 1 maruader to me to get started in the proper air rifle game! I am stoked as I've wanted one of these for a long time.(proper pellet launcher). The rifle is in wonderful shape. Lived in a gun safe and there are 0 signs of abuse or rust. He used a Hill pump with the moisture adapter on it when he first got it and then air tanks later on.

I've done some research on this .25 and found out that I can get an adapter to increase my shot count and change that pinging sound. It's a been a big rabbit hole to go down and seems if I want to add that component, I might want to have a chronograph to tune. And I don't have one of those.

I've seen the device called, SSG, HDD, TSS....it's been sort of like a science to me but I am trying. Figured I'd ask here to see if ya'll can give me some help on things I can do to help increase shot count as I am using a pump. Which one should I buy and should I even buy it if I don't have ability to tune it.

He is providing a new scope and I am excited that I'll have this and a JTS Airacuda .22 for plinking, small game hunting, and some bird shooting. Going to put the Airgun Capital moderator on this one too to help silence it a bit. I took one shot the other day and all the animals on my property went running. I know it's not that loud but a bit more quiet at the exit would be nice for my location and game I seek

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One of my four M-Rod .25s is a Gen 1 like that. I modded with a bottle brush depinger, an AGR split hybrid reservoir tube to reduce weight and improve balance, AGR SSG, AGR cocking assist thumb rest, .161 TP and barrel ports:



I regularly use and hunt with firearms that were designed well over 100 years ago or even are over 100 years old, how can you call a M-Rod old? The new is not even worn off mine. Deer do not know this rifle model was originally designed in 1892 by JMB:



Nor do squirrels know this made in 1954 Marlin 39A Mountie bought by gf for me the day I was born care it is 70 years old and designed in 1891 and used by Annie Oakley:



Old :rolleyes:? How can a rifle designed and marketed and sold still currently in the 21st Century ever be considered old?
 
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3Crows said:
One of my four M-Rod .25s is a Gen 1 like that. I modded with a bottle brush depinger, an AGR split hybrid reservoir tube to reduce weight and improve balance, AGR SSG, AGR cocking assist thumb rest, .161 TP and barrel ports:
Click to expand...

Did a bit of reading, seems I have to put the bottle brush into the airtube about half way down cut down to about an inch in size? Which I think is done by de-gassing and taking the foster fitting off and putting it down in there. What size bottle brush?

Googled 'AGR SSG', nothing came up.

Don't know what those other things are that you mentioned but seem cool when I get more into PCP stuff.

3Crows said:
Old :rolleyes:?
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Nice rifles!

Okay, i'll correct my statement..."Older* Marauder". I use my Remington Model 11 sometimes to shoot the air when I am bored...and yeah, that's old too...so is my Nintendo.
 
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mariosjsk8 said:
Did a bit of reading, seems I have to put the bottle brush into the airtube about half way down cut down to about an inch in size? Which I think is done by de-gassing and taking the foster fitting off and putting it down in there. What size bottle brush?

Googled 'AGR SSG', nothing came up.

Don't know what those other things are that you mentioned but seem cool when I get more into PCP stuff.


Nice rifles!

Okay, i'll correct my statement..."Older* Marauder". I use my Remington Model 11 sometimes to shoot the air when I am bored...and yeah, that's old too...so is my Nintendo.
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AGR is an abbreviation for my business name.
 
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There are all sorts of recipes and secret recipes for making a SSG (spring stopping guide) but the one from AGR works just fine and is cookbook. No secrets involved or several tanks of gas running all over to find the bits and pieces. Drop it in, adjust per instructions (about 10 seconds) and go shoot. The AGR thumb rest is a must.

I use a 1.25 inches diameter nylon bottle brush. I cut the handle off and bend the twisted wire to make a hook for retirevel. Degas, remove the end fitting, push it down about halfway, enjoy no more ping. Make sure there are no loose bristles or FOD to monkey up the works.

Gen 1 .25s and earlier Gen 2s did have a GM barrel. My most accurate of the four is a Crosman barrel. I was given the barrel by a gentleman on GTA. He had only used it for some testing. It is hole on hole. I bought another from AGR, it too is more accurate than the GM barrel rifle. And I have swapped the barrels around, it is not the gun, it is the barrel. I do not tolerate fussy rifles that can only shoot a certain pellet or ammo. I find the Crosman barrels to be less picky of pellets than the GM barrel but I would not say any are especially particular. I hunt, not bench shoot, so my standard for accuracy is minute of raccoon eye. I am not about to sit there and weigh, sort, wash, lube with secret sauce, wax, shoot and all that fuss to find the perfect pellet for some barrel. I would as soon light it on fire.
 
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3Crows said:
One of my four M-Rod .25s is a Gen 1 like that. I modded with a bottle brush depinger, an AGR split hybrid reservoir tube to reduce weight and improve balance, AGR SSG, AGR cocking assist thumb rest, .161 TP and barrel ports:



I regularly use and hunt with firearms that were designed well over 100 years ago or even are over 100 years old, how can you call a M-Rod old? The new is not even worn off mine. Deer do not know this rifle model was originally designed in 1892 by JMB:



Nor do squirrels know this made in 1954 bought by gf for me the day I was born care it is 70 years old and designed in 1891 and used by Annie Oakley:



Old :rolleyes:? How can a rifle designed and marketed and sold still currently in the 21st Century ever be considered old?
Click to expand...
The M-Rod isn't old. When compared to the oldest air gun neither are your firearms. Gilardoni 1779 and was a repeater 20/22 shots.

Girandoni_Air_Rifle.jpg
 
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357cal said:
The M-Rod isn't old. When compared to the oldest air gun neither are your firearms. Gilardoni 1779 and was a repeater 20/22 shots.

View attachment 515067
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I think that is my point. The Marlin 39A is the longest produced shoulder firearm from 1891 to 2019 when Remington then owning Marlin went TU and Ruger bought the Marlin brand. Ruger has not yet and probably will not :( resume production of the famous 39A. It seems in the airgun world if it is not but a few months since introduction and made in China it is old and obsolete. There is no reason a M-Rod could not remain functional for a couple of hundred years. Then it will be old.

Crosman barrel, two different pellets, same tune, same rifle, same barrel, same scope, no scope or setting changes, same Bat Time, same Bat Channel:



Card for another M-Rod:



If I where to purchase one of those FX $3000 rifles and it would only shoot one pellet or slug I would be sending it back for a refund and cannot hold POI day to day. That is foolishness.

The .25 M-Rod with full shroud should be very quiet. If it is not it is because it is not tuned correctly and probably has severe hammer bounce thus the need for the AGR SSG.
 
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357cal said:
The M-Rod isn't old. When compared to the oldest air gun neither are your firearms. Gilardoni 1779 and was a repeater 20/22 shots.

View attachment 515067
Click to expand...
The oldest Airgun in the US was my Bellows that dated back to early 1600s according to the Smith’s gold inlay signature in the barrel. It now resides at the B&B Airgun museum with its new owners.

IMG_2431.jpeg


IMG_2426.jpeg
 
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3Crows said:
I use a 1.25 inches diameter nylon bottle brush. I cut the handle off and bend the twisted wire to make a hook for retirevel. Degas, remove the end fitting, push it down about halfway, enjoy no more ping. Make sure there are no loose bristles or FOD to monkey up the works.
Click to expand...
Who knew finding a 1 1/2" bottle brush would be so hard on the internet. I've found some from $16 with shipping to $35 with shipping....then I finally found one that was just the right price and shipping price. Thanks for the hack!

https://www.supplyhouse.com/Schaefer-Brush-14458-1-1-2-Stainless-Steel-Tube-Brush-27-length

Airgun-Revisions said:
AGR is an abbreviation for my business name.
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Ordered one from you. Says it's a "tuned" SSG so I assume I will just drop it in and be stoked? Or do I need a chronograph?
 
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mariosjsk8 said:
Who knew finding a 1 1/2" bottle brush would be so hard on the internet. I've found some from $16 with shipping to $35 with shipping....then I finally found one that was just the right price and shipping price. Thanks for the hack!

https://www.supplyhouse.com/Schaefer-Brush-14458-1-1-2-Stainless-Steel-Tube-Brush-27-length


Ordered one from you. Says it's a "tuned" SSG so I assume I will just drop it in and be stoked? Or do I need a chronograph?
Click to expand...

My wife found bunches for me, they come as a package of different sizes, Amazon or such.

As to a chronograph, you really cannot tune an air rifle or reload for PBs without. But, yes, you can drop the SSG in and per the instructions on the AGR website, turn the SSG adjustment in until you hear air release and then back it off, what, 1/8 turn? I forget. But, yeah, that is what you do and then go shoot. The resulting small gap kills hammer bounce which is wasteful of air, makes noise, reduces power and shot count. There has to be a gap, follow the instruction on the website. I am using the standard spring, not the stiff spring, the kit comes with two different springs, despite my rifles being .25 caliber.

With the bottle brush depinger and the SSG your rifle should produce more shots, instead of a ping there will just be the sound of the hammer hitting the knock off valve poppet and a snap at the muzzle end. To optimize power or shot count and tune for accuracy you will need a chronograph, there just is not a free ride.
 
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@3Crows appreciate your reply! Had some fun with the Marauder for the first time today. Such a fun rifle and as a BB gun addict as a kid, this is by far a different experience but gets me just as stoked. Excited to continue shooting PCPs. I only have a Hill pump now with the moisture thing on it and after a day rowing a boat down a river, it was very hard to pump my gun to 3000psi more than once. Guess it’s time to get a compressor. 😂😂 This is a $$ pit. But I like it.
 
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mariosjsk8 said:
@3Crows appreciate your reply! Had some fun with the Marauder for the first time today. Such a fun rifle and as a BB gun addict as a kid, this is by far a different experience but gets me just as stoked. Excited to continue shooting PCPs. I only have a Hill pump now with the moisture thing on it and after a day rowing a boat down a river, it was very hard to pump my gun to 3000psi more than once. Guess it’s time to get a compressor. 😂😂 This is a $$ pit. But I like it.
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I hope you continue to enjoy. Yes, you will need a compressor.

I would have recommended you get the AGR thumb rest also. It is a game changer, instead of racking back on the bolt you simply place the thumb on the rest, put one or two index fingers on the bolt in as close to center line as possible and then squeeze your hand as if squeezing a rubber ball and the rifle will cock smooth and easy.
 
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Went walking around the property looking for a rabbit, quail, or dove...and wow, this rifle is HEAVY. I really want to hike around with this thing but wow...it was heavy. I had it on it my shoulder and was just carrying it. I am going to get a strap for it but I really wouldn't mind finding a lighter stock option for it. Looking online, since this rifle is "older" (not old), no one really makes any for them anymore. Any suggestions out there for a lighter stock configuration? Anyone have old tac conversions they aren't using anymore?

I saw this but it's for a gen 2 and I'd love to do this for when I am hiking through the woods - https://www.jsairrifles.com/Benjamin-Marauder-Gen-2-AR-Stock-Adapter-Kit-_p_117.html

Saw this one too - It's interesting. - https://terminadorindustries.com/products/benjamin-marauder-sniper-stock
 
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