GTA
Airguns by Make and Model => Crosman Airguns => Topic started by: muddypluka on August 23, 2011, 10:24:23 PM
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hi all
im new to the forum and my knowledge is a little bleak at best lol
ive just purchased a nitro dusk from my local dealer but im finding it to be underpowered any suggestions ?
at present it is producing 11.59flbs 606fps using rws super-h-point .22 pellets 14.2gr ?
is there any way of increasing the pressure within the piston or is that a bad idea on all the crossman items i can find on the internet the figures say in the region of 18 - 22 flbs
my concerns are i am used to kill shots of upto 200ft with my old rifle using the same ammo but this dosent seem to have the same power and the last thing i want to do is have an un succesfull shot hit but not kill my targets ?
are ther any immediate power gains achieved buy switching pellet ?
or would i be looking at a rebuild with a stronger piston or different components?
sorry to pose so many questions in one post but im getting frustrated with my new gun
kind regards
chris
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muddypluka,
thats weird. how long have you had it? and where did you purchase it at? you may have a bad nitrogen piston. or possibly a bad piston seal. now you have a couple of choices.
1.) you can make sure you clean your barrel thoroughly and you may have to disassemble your rifle to check its seal to see if there is any marks, tears, scrapes and so on. And if you are going to do that, then you might as well attempt to do a self tune if you're mechanically inclined. But before you disassemble it or try to, make sure you read up on it on this site. I swear to you friend that this site is "THE BEST" air gun site by far and that goes for the members too. Know that you will need a spring compressor. either bought or self made, buy the seals and lubes from this site: Air Rifle Headquarters: http://www.airrifleheadquarters.com/page/page/251327.htm (http://www.airrifleheadquarters.com/page/page/251327.htm)
If in fact you choose to do this yourself, it is an experience and an addiction. If you are unsure of your mechanical ability, they're numerous people who can and some of these people are professional "tuners".
Your other option is to take it back to your local dealer and exchange it. and lastly you can contact Crosman at: 1-800-7AIRGUN (724-7486) and their website is: http://www.crosman.com/ (http://www.crosman.com/) and ask anyone on this site and they will attest to the quality of Crosman's customer service. I was a pain in their back side just because of a pivot bolt but that had to do with the higher up's. but i wont let that tarnish their customer service is by far the best I have ever encountered. Ms. Beth McClung, Ms. Kim, Mr. Chuck are the greatest. But check out this whole site. hope i helped
josh3rd
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hi josh3rd
i bought the rifle at the weekend i thought about the seal or even a weaker piston but i think i have also stumbled across two other possibilities firstly a .22 is 5.5mm and they feel ever so tight to insert into the barrel and when closed there appears to be a slight bump in the barrel to stock positioning and sometimes there are small shards of aloy in the gap between them (could my barrel need boring ) i have cleand it thoroughly with de greaser and oiled the outside ,
the other thing that has been plagueing me is the uk spec rifles are only 12flbs how do they restrict them ? is it a different piston and how would i identify if i had one if that makes sense
ive looked on http://www.airrifleheadquarters.com/page/page/251327.htm (http://www.airrifleheadquarters.com/page/page/251327.htm) but i am a bit baffeld as to what i should be looking for crosman dont show any for of spares for the dusk i suppose i will have to keep searching
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Hi
Are you in the UK?
If so which power level gun do you have. I understand the lower power restriction is 12fpe.
If you can find a buddy with a chrono, check the speed of the pellets.
The power is produced by the gas spring. The lower speed is done with a lower pressure spring.
Talk to your dealer.
Some barrels are a little tight and you need a tool like a ballpoint pen to push the pellet into the barrel.
If the breach is shaving the pellet skirt, the accuracy will be off.
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Just chiming in to say I also had a Nitro Venom Dusk .22 (USA spec) and it also had the problem where the pellet skirt would stick out of the barrel breech a little bit, I rarely got pellets to lay flush inside the breech.
I thought it was a problem with my pellets (Daisy Hollow-points), but never once did I consider that may have hurt my accuracy!
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hi dkwflight i have a power output of 11.59fpe do they just swap the spring for uk models or do they release a certain ammount of gas from the piston
hi will403536 i dont think it is effecting my accuracy but it could be part of the problem of the power loss if the pellet isnt sitting in the breech properly then there must be a gap between the stock and the breech once the pellet has move down the barrel and possibly loose pressure through the gap ?
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Hi
THe factory uses a gas spring with a lower pressure from the factory to suit the destination country's rules. A stronger spring can be installed. The factory gas spring can not be adjusted or recharged.
I have been playing with different springs for the Titans. I am using an American version now.
If you suspect the breach seal try a shot with a bit of toilet paper laying on the closed breach and firing. If the breach seal is leaking the TP would be moved by the air.
Also I have heard if you close the breach on a piece of TP the leaking area will be torn by the air when fired. No experience there.
I do know the seal can be adjusted with the addition of some sort of shim under the seal. Crosman sells shim washers.
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dkwflight ive got to ask the question what country are you in and where did you get the american speck piston from i can only assume that my piston is the uk spek running under 12fpe i suppose if the american piston are only sold in america they are pretty hard to come by elsewere and i wouldnt think my local dealer would import just parts when they sell the complete setup pretty cheep
chris
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Technically you're not buying a gun that has over 12 fpe... So maybe just buying the part wont be impossible.
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Hi
I am in the USA.
THe high power gas spring is not Crosman.
I know in the UK if you want a high power gun you have to comply with the fire arm laws and permits.
I do know in Ireland hi power stuff is available.
better not risk a fine.
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sorry for the long delay in replying dkw i am in the uk and yes i have to comply with the 12 fpe regulations (what a downer)
ive been using the dusk now regularly on the land but am completely failing to get the kill shots i desire and have been so acustomed to with my old springer (couldnt tell you the details of it ) i bought it second hand from a buddy who upgraded to co2 im starting to thing the springer is overpowerd ? ill take it to be tested at my local gun dealer and see
if it turns out to be over the limit i will surrender it to the police