my warped sportz delron bolt fits perfect in my gun but is a total pain in the butt to get through my back block, i have to pull on it about as hard as i can to get it out of my gun. it goes in ok though. so i think just the back part of the delron was slightly swolen when i got it. i dont know if it would be ok to sand the back down a little or if i should continue to use it like this, because like i said, it fits perfect in my gun and performs flawlessly, just real hard to get out.
Born again newb...