CO2 Project gun

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    Richardo
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    Member

    Hi all. Having been bitten by the co2 bug with the Artemis I purchased I decided to look for a project rifle. I spotted an old Crosman 2260 to which the owner had done all sorts of mods to increase the power. Cosmetically it was rough, and the price was right.

    The power of the 2260 was impressive, but it was woefully inaccurate. So I decided to take the gun back to standard as my project. I have been working on the cosmetics as well as scrounging second hand standard parts ( lots about as many people do mods on their Crosmans and many parts are interchangeable).  My big experiment will be barrel length. When new the 2260 came with a 24” barrel,  but mine has a 18”. There is lots of conflicting info about the ideal barrel length, and we all know that  the same model of gun can shoot differently from one gun to the other. However I am wondering if any Crosman gurus out there have any first hand knowledge of their ideal barrel length. Bear in mind that I am primarily interested in accuracy over 25 yards. Many thanks for any input. Richardo

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    ranedouglas
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    just order either a 24" barrel , or even a 26" (from benjamin maximus euro) in .22 cal from crosman – they are cheap.  i suspect that is really all it needs.   if you dont know how to order parts from them , pm me and i'll teach you.  you have to have your shit together when you order parts from them.  but , yeah, i figure around $20 shipped.  it'll take a few hundred pellets thru the new barrel aftre cleaning it out good from factory gunk inside (keeps it from rusting inside while on the shelf).  but after the new barrel gets seasoned , they are not bad barrels at all for the price – way better than chinese barrels.  with co2, it keeps expanding when released – so longer barrel produce more velocity.  .22 and .25 are most efficient with co2 (imo) resulting in ftlbs.   unless the gun is getting less than 16 shots per co2 cartridge, and even then, wait until you see what the new barrel does before you shitcan the other guy's internal mods…..    

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    spysir
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    Length has not a thing to do with accuracy. Slap- a 10" LW barrel on it and it will out shot 99% of folks.

    Now fps IS effected greatly figure 10-15fps per inch of barrel at some point. Naturally with Co2 you need some length for efficiency.

    a 1701p will hit fly's at 50 yards with it's short barrel.

    It's all about the QC.

     

    John

     

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    AirNGasman
    Participant
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    That barrel might have been cut already but not crowned well, explaining the inaccuracy. Recrowning can sometimes work wonders.

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    Richardo
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    Thanks for your feed back guys. As I dig deeper and deeper into the subject for me the choice becomes more and more complex. Getting the right balance of velocity, distance, accuracy and of course cost is, I suspect, going to be a challenge.

    My understanding is that the LW barrel needs machining to fit a steel breech, whereas the Crosman barrel is a plug and play. Some say that the CM barrels vary markedly in quality but I have no evidence of this, although I suspect that like all things quality can vary from time to time. There also seems to be differing grades of barrels made by some companies. It seems the better the grade the higher the price, which is logical. 

    I have been offered a second hand CM 14” barrel which I initially declined. However based on John’s feedback I will change my mind and take and compare with the 18” one on the gun. 

    I have to say that for me what seemed to be a pretty straightforward choice is getting more and more interesting. 

    Please…. keep the feedback coming. Cheers. Richardo.

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    Gipper
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    spysir

    Length has not a thing to do with accuracy. Slap- a 10" LW barrel on it and it will out shot 99% of folks.

    Now fps IS effected greatly figure 10-15fps per inch of barrel at some point. Naturally with Co2 you need some length for efficiency.

    a 1701p will hit fly's at 50 yards with it's short barrel.

    It's all about the QC.

    T

     

     

    John

     

    True…but he said he wanted to go back to stock which is a 24" barrel so the advise given about ordering on from Crosman was solid and likely the cheapest way to get a new barrel for it.

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    Richardo
    Participant
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    Hi guys. An update – after further research I decided that the math and other variables was just to complex for me to come up to with a “scientific “ answer to the question regarding barrel length. So having been gifted a 14” barrel, and the 2260 currently has a 18” barrel fitted, I splashed out and ordered a new 24” Crosman barrel. My plan is to test each barrel in turn to get a gun that best meets my needs. It will take time and a bit of luck, but hopefully the final outcome will be a good one. Richardo

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