The longer 2260 barrel will give you more fps! as mor barrel lenght = more fps! 177.Īnd second yes removing threads increases fps! by removing some of the threads (about half of them) increases the internal volume of the valve allowing more co2 to get to the pellet!Īand all the mods you have metioned wil give you more fps!īy angling the port it allows for a smoother/easyer path for the co2 to get behind the pellet! the lighter valve spring with a heavyer hammer spring will also give you more fps! the lighter valve spring when hit by the heaveyer hammer spring is held open longer allowing more co2 through the valve!Īs for polishing the sear and trigger components! all that des is make for a lighter trigger pull! and thats about it for the polishing!
25 coversion kit he sells for the 22XX guns. If I could get the answers to the above questions I think I'b be set.įirst the Bio valve is meant for the DAQ. I just need to perform the mods that will increast FPS, pick a finish for the parts (which I have removed the blueing from and lightly polished) and assemble. I have all of the instructions on how to preform the mods (I've read each at lest a dozen times), and I have all the parts (except for the bulk fill from Bryan). H) Remove the piercing pin from the air valveįrom the posts I've read it sounds like someone(s) has preformed all of the above to a single pistol, but I have not yet found what the finished mods did for FPS. G) Swithced to a 2260 main tube converted to bulk internal CO2 Is there a difference in performance? Is there an increase in FPS?Ģ) Does removing any of the threads from the male portion of the stock 22xx airvalve add to better FPS?ģ) Has any member of this site ever done all of the following mods, and if so what increase have then seenĪ) Reangle port on valve leading into barrelī) Remove some of the threads on the male portion of the air valveĬ) Replaced the spring in the air valve with a lighter oneĭ) Replaced the Hammer spring with a heavyer oneį) Replaced the stock 2250 Barrel with a recrowned 2260 barrel cut to 20 inches I've read all the current mod post and have a few questions regarding mods to the 22xx pistols/rifles.ġ) What is the fundamental difference between BioHarzards BioValve and Bryan's Internal bulk conversion. I'd love to get 700 FPS but I'm not sure the rifle can be moded to achieve that goal.
I am a plinker who is trying to get the most out of a 2250/2260 mod'ed pistol. Some of my reading came from this site, which I must say has been very helpfull. I have been reading up on Crosman 22xx mods for the past 4 or so months.
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