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Marauder Reviews

BENJAMIN MARAUDER 5.5 - By Artilheiro

Depois de quase quatro meses do recebimento da Marauder 5.5, e após a realização de muitos testes e ajustes. Acho que consegui reunir uma quantidade de dados e informações para este Review.

CARACTERÍSTICAS.
A Benjamin Marauder foi desenvolvida pela Crosman que a equipou com recursos de regulagens, disponíveis apenas em armas de padrão Top. Ela é dotada de um cano Crosman, raiado com choked (ídem BSA Super Tem) e no caso específico da minha, ao retirar o o’ring interno do suporte, ele ficou “flutuante”, o que proporcionou ganho considerável na sua precisão. Ou seja, o que já era bom, ficou melhor ainda. Além disso, ele é Bull Barell, o que garante um disparo bem silencioso. A Marauder trabalha com pressões que variam de 1700PSI(120BAR) a 3000PSI(206BAR). Em razão deste recurso, ela tanto utiliza o PCP como o CO2. Ela pode ser carregada com o uso de uma bomba de mão como por um cilindro de alta pressão. Este recurso, facilita muito a sua maneabilidade, principalmente para aqueles que a utilizam na prática do tiro ao ar livre.

DADOS do FABRICANTE.
Som: cerca de 85dB.(considerado, baixo-médio).
Comprimento do cano: 508mm.
Comprimento total: 1092mm.
Capacidade do magazine(carregador): 10 tiros.
Cano: raiado com choked(“afunilamento” antes da coroa).
Sistema de mira aberta: indisponível.
Sistema de mira ótica: trilho (dovetail) de 11mm.
Peso: 3,4kg. (sem luneta)
Gatilho: ajustável de 2 estágios.
Peso do gatilho: aprox. 680gr.
Soleira: original, ventilada. A minha está com uma ajustável.
Propulsão: PCP(Pre-Charged Pneumatic) ou CO2
Segurança: Manual (alavanca à frente do gatilho)
Configuração: Rifle.

Desmontando a Marauder.
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Conjunto válvula/suporte do manômetro.
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Válvula.
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Parte traseira da válvula.
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“pilotinho” da válvula.
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Interior da válvula.
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Mola do “pilotinho”
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Base do Manômetro.
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Suporte do manômetro(int. cilindro) e manômetro.
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Manômetro- conjunto montado no tubo de pressão.
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Vista interna do martelo.
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Colocação do martelo no tubo de pressão.
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Transferport.
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Transferport instaldo no tubo de pressão.
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Instalação da culatra (Breech) no tubo de pressão.
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Ponteira de alinhamento do cano no Bull Barell.
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Desmontagem do conector de carregamento.
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GATILHO.
O mecanismo como pode-se ver nas fotos, é totalmente metálico. Possui vários ajustes tais como:
Regulagem do peso do conjunto do gatilho(A),
Regulagem do 1º estágio(B)
Regulagem do 2º estágio(C).
Posição do gatilho(mais avançado ou mais recuado) (D).
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Como se não bastassem todos estes ajustes, para deixar o gatilho no padrão “cabelinho”, eu retirei a mola conforme mostram as fotos abaixo. A retirada desta mola do gatilho, reduziu o seu peso em mais de 40%.
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MAGAZINE
Como tudo na Marauder prima pela simplicidade, o mecanismo do magazine não foge a regra. Nada de alavancas nem travinhas. Uma mola central,em seu interior(vide foto) é responsável pelo movimento de municiamento. Ou seja, puxou o ferrolho para traz ele automaticamente já posiciona o chumbo na culatra do cano. Empurra-se o ferrolho à frente e pronto. Está carregado. Para municiá-lo, basta deslizar o display de acrílico, que é numerado de 1 a 10 no sentido horário, até que ele trave. Coloca-se o primeiro chumbo e inicia-se o movimento deslizante no sentido anti-horário colocando um chumbo em cada posição. Ao chegar no ponto inicial, é só travar(ouve-se um click) e está pronto para ser inserido na culatra pelo lado direito. Aliás, para quem é destro, é uma mão na roda. Um detalhe, ao se puxar o ferrolho após o 10 tiro, o magazine faz com que o ferrolho fique travado indicando a necessidade de sua troca por outro. Este outro ao ser colocado, basta empurrar o ferrolho à frente que a arma está carregada.
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BULL BARELL.
Este é mais um dos pontos altos da Marauder. O sistema composto por quatro câmaras, funciona tão bem que as vezes só se ouve o som metálico do martelo batendo no piloto da válvula de disparo. Teste efetuado pelo Paul Capello obteve um valor pouco maior que 85dB. O mesmo teste efetuado na S410 XTRAC-FAC alcançou 101,2dB.
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CORONHA.
Feita de Faia(um tipo de madeira de Lei), é uma peça muito bem acabada. Leve, possui enpunhadura ambidestra, o que facilia a vida de destros e canhotos. Na minha, retirei a soleira ventilada e coloquei uma ajustável. Resultado, a empunhadura da arma tornou-se muito mais firme e confortável. A fixação da parte mecênica nela, é feita por um único parafuso o que facilita a desmontagem para manutenção.
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AJUSTANDO A PRESSÃO DE CARREGAMENTO.
A Marauder foi projetada para trabalhar numa faixa de carregamento que vai de 1700 a 3000PSI. Isto é feito, ajustando-se a pressão da mola do martelo(hammer spring) e o curso do martelo, através de um parafuso central. O acesso tanto à mola quanto ao parafuso, é feito, introduzindo-se uma chave Allen de ¼ (para a mola) e 1/8 (para o parafuso) por um orifício rosqueado no final do tubo de pressão. Na minha arma, por motivos estéticos, aproveitei a rosca e coloquei um parafuso neste orifício. Um dos segredos da Marauder é encontrar o ponto de equilíbrio destes ajustes. Dele, vão depender o consumo de ar por tiro e a velocidade.
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AJUSTE "FINO" DA VELOCIDADE.
Este ajuste, é feito de uma forma precisa para que você possa obter a velocidade que você deseja, dentro dos limites de capacidade da arma. Para isto, é necessário retirar a parte mecânica da arma da coronha. Ele é feito por um parafuso de ação, localizado no corpo da válvula. Quanto mais fechado(sentido horário) menos ar passa pelo Transferport. Conseqüentemente, menos ar passa para o cano, e a velocidade diminui. Girando-o no sentido anti-horário, o fluxo de ar aumenta e a velocidade também. Este ajuste, como todos os demais na Marauder, é muito sensível. Basta dizer, que ¼ de volta faz uma diferença considerável no valor da velocidade. Para ter acesso a este parafuso, é necessário inserir uma chave Allen 3/16, retirar um outro parafuso que funciona de trava(foto 1). Feito isto, e com a mesma chave, dá-se início ao ajuste propriamente dito(foto 2). A partir deste ponto, é que você perceberá que a velocidade ficará quase que constante.
_foto1______________________________foto 2
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É possível fazer um furo na coronha de modo que esta regulagem, possa ser feita sem a necessidade de se retirá-la. É uma um recurso, contudo, de gosto duvidoso.
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Outra forma de se alterar a Vo, não só da Mrod como de qualquer outra PCP, é trocando o Transferport por outro de diâmetro interno menor. Este alías, será um dos próximos ajustes que pretendo fazer. Minha intenção é deixá-la com uma velocidade em torno de 270 a 275m/s com munição de pouco mais de 15gr e numa pressão de saída do transferport de 1600PSI(110BAR).


AGRUPAMENTOS
Todos os testes foram feitos, carregando-se a Mrod com 2600PSI(180BAR) de pressão inicial. Foram feitos agrupamentos à distâncias de 18, 23, 28 e 33m. Ou sejam, as mesmas distâncias para provas de silhueta metálica 1/5, disputadas aqui no Rio. Como na prova existem 5(cinco) silhuetas por distância, foram feitos 5 tiros por tipo de chumbo em cada uma das distâncias. (5x18, 5x23, 5x28, 5x33). Para cada distância, foi registrada a pressão inicial. Este método, proporcionou uma visão do desempenho de cada tipo de chumbo, em relação às distâncias. Ou seja, para uma determinada distância, foi possível detectar o chumbo que melhor agrupa. Depois de testar diversos tipos e marcas de chumbo, os que apresentaram os melhores resultados foram:
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Crosman Premier “Domed”
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Crosman Premier “Hollow Point
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Barracuda Match Extra Heavy
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JSB Match Exact RS
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Portanto, com os dados acima, podemos concluir que na minha Mrod, para 18m o melhor chumbo foi o Brracuda, para 23m o CP“Domed”, para 28m e 33m o CP Hollow Point.
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VELOCIDADE
Com os chumbos acima, foram feitos testes de velocidade (Vo), que apresentaram os seguintes valores:
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Bem, num primeiro momento, estes são os resultados que eu queria passar para vocês. A Marauder como dito anteriormente, é uma arma que oferece uma gama muito grande de ajustes. Por isso, à medida que eu for fazendo novos ajustes, atualizarei este review. Semana passada, recebi o cano LW de 24’ que vou colocar nela (uma obra de arte). É claro que isto vai implicar num aumento do comprimento do Bull Barrel já que seu cano original tem pouco mais de 20’, e conseqüentemente, o deslocamento de seu centro de gravidade mais para a frente da arma. Já estou trabalhando também num novo Transferpor. Minha intenção, é aumentar a Vo e diminuir o consumo de ar. Minha meta é atingir uma Vo em torno de 280m/s a 1600PSI(110BAR) com munição de 15,9gr.

2nd impression - 22 Marauder

I have had my gun a little over a week and I am having a blast now that I have the suba set up. Pumping this thing with the Ben hand pump sucks. I am still using the factory settings. I am on my first fill from the scuba tank. Filled to 2500# and after 20 shots It is at 2000# using 14.3 gr. Ben HP which is what PA used when checking the gun (10 for $10 test) The tape they sent me was 925 fps for first shot and 881 fps for the 10th. From what I have read in reviews that sounds a little high but I am happy and will not change the settings for now. I am getting 3/8" groups at 56' indoors. I have shot birds at 50+ yards with no hold over. I have a bunch of expensive German rifles that will be gathering dust. Tip--I have a shooting stick. the V unscrews and will screw on a camera tripod. It makes a great shooting rest. I have a long and a short bipod and this set-up works as good as the long one for shooting from the sitting position and I don't have to remove the bipod to put it in my safe. When recooped financially I will get a Chrno. and maybe a limanated thumbhole stock. I am loving the accuracy,power,multi shot without cocking a break barrel and especially the quiteness for backyard shooting. I can't wait to take it small game hunting. If I restock it I will try to post pictures.

First impression of 22 Marauder

Got my 22 Marauder today after weeks of research. I got the 10 for $10.00 deal,3 Mags and the Benjamin hand pump. Don't know if it was the 10 for 10 inspection or I just got lucky but the fit,finish and function are perfect. Mounted a 4X16x40 Center Point scope ( I have 3 of these and they are great for the price ) The gun came with 2200# of air. It was tested at 2500#. 890/925 fps with 14.5 gr. Discover hollow points. I did not add any air to sight in at 20 yards. Took me 5 rounds to hit a 3/4" dot with the next 5 rounds. I was impressed. I then picked off 6 doves offhand from 35 to 50 yards. 5 of them fell straight down. I missed the first 2 because i was holding a little high. Very flat from 20 to 50 yards with only 2000#. Now the negative part. I am 68 yo and pumping this thing to 2500# is a chore. Because of the reviews I read I bought a 80CF 3000 psi al. scuba at a locaL Dive shop. I ordered a Kingman yoke with Foster conecter 5 days ago from Az. Air Guns. It has not shipped and they will not respond. I paid $99.00 plus shipping. Probably My last purchase from them. I will stick with Pymamid in the future. I have 5 German guns that cost way more and the quality is superior. This is my first PCP and will probably not shoot the springers much any more. I bought a Benjamin Super Streak about 6 months ago. It is a grear hard hitting Springer that someone can get a great deal on. I love the 22 Marauder !!

.25 Cal. Marauder

I got my .25 Cal late Monday via UPS from Pyramyd Air. I got a package deal with a good Leapers 4 - 16X scope and case. I also bought 4 different heavy pellets to go with it. I already had a Benjamin hand pump for my Discovery.

Yesterday, I took the Mrod out to the desert to lean a bit about it and get the scope sighted in. I set the target up at only 10 yards just to see if the scope would get me on the paper. It did and of course, I forgot to bring any hex wrenches and the scope dials were locked down! Oops! :oops: Oh well, I decided that since it did at least hit the paper at 10 yards, I might as well run a few pellets through it...now I discover I forgot to bring along the Eun Jin pellets I really wanted to have for hunting! :o

OK,, so I at least had the rifle, 3 other brands and types of pellets, and the pump! :)

Here are the pellets and groups from each. These are 8 shot groups...handy since the Mag is an 8 shot Mag...

Beeman Kodiak Extra Heavy:

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Group:

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H&N Spitzkugel, 24.85 grain:

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Group:

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H&N Baracuda, 31.02 grain:

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Group:

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I liked the H&N Baracuda best but still wanted to try out the Eun Jin pellets and sight in the scope so I packed up and headed back to the house.

OK, Now I get back to my shooting spot after my trip home and have all that I need to continue my tasks! :D

I set up a bench on a portable table. Put the target out to 20 yards and start off with pumping the Mrod to just over 2800 psi on it's built in meter. Shot a group and found that the first two shots were a bit wild then things settled down. Got the scope pretty well sighted quickly but I still didn't have the hang of how much air I should be using! :roll:

First of all, pumping up the Mrod with the Benji pump is a bit of a workout! I put about 120 or so pellets through it yesterday and found out all about that! I found that for every 100 psi of air pressure you want to put into the rifle, you'll pump about ten strokes on the hand pump. The air reservoir on the Mrod is larger than on the Discovery and that equates to more volume and more pumping even if you don't figure in the pressure difference.

Shooting was fun and I found that I can get about 20 or so good accurate shots per fill. The fill pressure I found working best was 2700 psi and only letting the pressure drop to about 1800 psi with the heavy pellets I want to put through it. I guess I will grab another two mags for it and just count on either a refill at shot 20.

Speaking of pellets, overall the H&N Baracuda pellets worked best for me. The heavier Eun Jin pellets turned out to be a bit on the wild side. In My Disco, H&N pellets don't work well at all and the heaviest Eun Jin pellets are the best...ya just never know till ya try! Oh well! I only bought one time of Eun Jin for the Mrod anyway.

The only adjustment I have made to the Mrod so far was the "velocity" adjustment. I don't have a Chronograph so I simply turned it all the way in and backed it out again 4 1/2 half turns to ensure the tube was 100% open for max air flow. Certainly NOT scientific but it seems to work for me.

That's my "first look" so far...I'll be posting in other sections of the forum with other things as time goes on.

Al

Nov 2009 Rile Magazine Marauder Review.

Nice review of marauder in Rifle Magazine for Nov 2009. Also can be seen on line. Ya goota love the Marauder. :D :D :D

My New Marauder

I just got my new .22 cal Marauder Friday this week. Took pictures that I wanted to post here but it looks like I am not allowed to post as I cannot find any links to attach files or past pictures--perhaps it was just me and I cannot find the right link. In any case I will just describe my initial observation using descriptive words:

I got mine from PA, and it was well packed and survive the rough handling from UPS. It came with the Benjamin hand pump, 3 .22 cal extra clips and crosman premier hollow points and 4X16-40 scope. The serial number was a little bit strange, 809 and the number 4 at the end stamped on the air tube assembly. I think 809 stands for made in August 2009. I checked brown carton from Crosman and I found a sticker stating 8/5/09, not sure if this was the manufacture or shipping date.

Out of the box the stock looks good, no scratches or rough finishing, however, not as well finished as the other more expensive over $1,000+ European airguns. More scrutiny and closer inspection revealed what looks like a stripped head slot on the Plunger Assembly, Item 7 (Part# 1763-106) on the marauder parts lists. It looks like someone at the factory over torqued the plunger bolt/set screw and the slot where the screw drive sets was almost completely stripped. Third item I notice was the O-RING, AS568B-118 (part#1763-026) on the Fill Adaptor Assembly, was over tightened to the point that that half of the o-ring was deformed and torn with small pieces of rubber. I remove the barrel band assembly as some folks are saying that this can cause the barrel alignment issues due to UPS handling, and sure enough, it was misaligned. Took my allen wrench and loosened the band and all is well, I can see light around the shrouded barrel when held against light. Lastly, I open the barrel shroud assembly to check and see the four shrouds and it looks well made and no issues there.

OK so overall apart from the issues I identified from the preceding, I decided to start pumping air into the MROD's air tube. I was initially worried about the condition of the o-ring as it may not hold, or worse, start leaking HP air. 160 strokes laster and lots of sweat, I got her to 2000PSI and I decided to dry fire to test and see how seriously "quiet" this AR really is. Well, I was extremely pleased from what I heard--just like the reviews I've seem and watched on youtube, the AR is really and unequivocally the "QUIETEST" production PCP on the market today! I say production, as other PCPs can be as quiet or even quieter that the MROD, but that is after you have spend additional $$$ for after market shrouds. It is not dead silent, but man, this is quieter than my subsonic .22 cal rimfire ammo as 500FPS...WOW I am impressed. I then proceeded to load the pellet rounds onto the 10 shot repeater clip, pulled back the bolt, inserted the clip and push the bolt forward...the bold will not engage forward no matter how hard I was pushing and after several attempts, I broke out the manual and there it says on page 3B
"With the cover of the clip facing the butt of the air rifle insert the clip from the right side and push it inward until it snaps" What I was neglecting to do was "push the clip inward until it "SNAPS"... doh...LOL... the clip has to snap before any pellet can be inserted into the breech...wheew...

I aimed the MROD to my target, squeeze the nice and crispy trigger and there goes my first shot...again, another wow moment...as the pellet came flying out the barrel and into the target. Cocked the gun again and the 10 shot repeater is really nice for the first time, I do not have to reach for a pellet to load, I just continue to shot away being careful not to double load as others I have heard had done inadvertently. So overall I have no issues with the Marauder, I just need to call Crosman next week about those "nit picky" issues about their QA. I wonder if any of you have seem these same quality issues with your marauder.

Now I have some question for you folks that have had your MROD for a while now about the the fill pressure and factory settings. I have not change any of the hammer preload, striker, and metering--they are all factory default at this time. My question to you is, what are the factory settings for hammer, striker, and metering? Second question is, I pressured my MROD to about 2800 PSI and test fired a few rounds and I seem to like this setting since I can get a lot of shots in between fills to about, say 1600 PSI before the next refill. Are there any issues with this higher fill and leaving the factory settings/defaults to the original values?

Sorry for the long post, but this Marauder is a keeper after I have tested and evaluated other comparable PCPs and break barrel, this is the best thus far.

- DC

My Quick Review on #008~22 cal

Here's my Quick review ('cause you've already read all the other in depth reviews on the Internet) of the Crosman Benjamin Marauder .22 with Leapers Accu Shot 30mm SWAT 4-16X56 Full Size A.O. Range Estimating Mil-Dot Illuminated Scope

I LOVE this rifle!!! It's beautiful, extremely quiet, very accurate and packs a very nice punch. I have not changed any of the factory settings. Between 2400 psi and 2000 psi she is very consistent. So far I've found she loves to shoot CP's 14.3 gr giving an average of around 905 fps and 26 lbs of energy. Beeman Kodiak Extra Heavy's 21.1 gr produce an average of 800 fps and a hard hitting 30 lbs of energy. I had dime size groups with both pellets, 10 shots each. What more can you ask of this fine American made PCP?

David

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