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help modify my paintball gun shoot at 400 psi , or 600 fps, im trying to convert it to shoot special paint projectiles

im trying to modify an a5 tipman marker to shoot a specialised paint projectile im creating , basically a sniper round of my own disign, but i cant get the gun to volicity i need. im not overyly into pmnumatic sytems as i should be, so i need help. i want at least five to six hundred fps, as the projectile is about twice as heavy as a regular paintball, so at 300 fps for a standard round i fiqure 600 fps for a round that is double its wiehgt, any help on how to acomplish this would be great,

zs7 years ago
would not suggest that for obvious reasons, also even in scenario games max velocity is 300 fps