Quick question: With a stock drain blaster still containing it's OPRV (assuming as good an air seal as possible), a 12" long 1/2" PVC or 17/32" brass barrel and a single 1. Stock dart and 2. Cut-down stock dart, what's the highest FPS you could potentially get out of it up to, say, 25 pumps?
Unfortunately my drain blaster isn't functional at the moment and circumstances prevent me from repairing it, so I have to ask it here.
And yes, I realize it'd be "stupidly powerful and you should never bring this to a war"; of course I'd never bring a singled drain blaster to a war. The question here is "how much power could you get out of doing X", not "how much power should you get out of doing X".