When I was like 13 I had one of those 20-30$ Walmart guns and although it didn't have the range of my buddies 200/300$ gun, that thing really punched in the range it had.
I only found out because me and him were in the woods playing and every shot I got from his was easily brushed off. Every shot I had at him with that cheapo gun had him on the ground. It really punched within 100 feet or so. He got so pissed that my crappo was that painful he made me swap with him and I got to use the nice gun. But OMG did my gun hurt so much more to get hit with. When I realized how painful that one was we both stopped playing for the day.
That thing left welts like you wouldn't believe. Edit: Although I was easily picked off in the long range :)