Howdy all. A recent flood of overtime pay has left me with the resources to do something I've always wanted to do- build a custom project gun. To this end, I've decided to start with the basic platform of a 2400KT from the Crosman custom shop. I'm looking to increase velocity as much as possible (to rival one of my magnum springers, if possible), while retaining the use of 12 g powerlets. I'm planning on starting with a 24" .22 barrel, shoulder stock, and stock trigger. I then plan on adding a high-flow valve, enhanced hammer spring, and wide-bore transfer port (likely from Alchemy Air Werks), and perhaps adding one of their air strippers to vent the massive amount of CO2 each shot will release. My questions are thus:
First off, how do I go about swapping out the transfer port, valve, and hammer spring? These are claimed to be "drop-in" mods, which implies that they can be inserted without too much fuss, but I've still never done this before.
Second, If anyone has done this before, what can I expect in terms of muzzle velocity for the finished gun? A stock-internal 18" 2400KT seems to average in the high 500- low 600 fps range, but the combination of increased barrel length and increased CO2 release (more propellant and more room to push against the pellet) might alter that. If I can get into the 700+ FPS range, I will consider this a worthwhile project.
Finally, if there are any other add-ons (or substitutions for what I have proposed) that you would advise, please let me know.
First off, how do I go about swapping out the transfer port, valve, and hammer spring? These are claimed to be "drop-in" mods, which implies that they can be inserted without too much fuss, but I've still never done this before.
Second, If anyone has done this before, what can I expect in terms of muzzle velocity for the finished gun? A stock-internal 18" 2400KT seems to average in the high 500- low 600 fps range, but the combination of increased barrel length and increased CO2 release (more propellant and more room to push against the pellet) might alter that. If I can get into the 700+ FPS range, I will consider this a worthwhile project.
Finally, if there are any other add-ons (or substitutions for what I have proposed) that you would advise, please let me know.
