Hey, I just recently bought a 500xs from Wal-Mart before doing much research into air guns. I'm an avid hunter and would love to up the power on this thing for some cheap small game hunting. Does anybody know if the mainsprings in the 800x and 1000x will fit the 500x? And if so will it give me the desired result. I would love to hear if any others have some ideas on how to tune this gun for some extra pop, or anybody that has done so with success.

Thanks for the help!

The X800 and X1000 are positvely the same gun and wear the same spring for the X500 I dont know but probably has a smaller chamber.