just got my lehigh conversion breech plug for knight disc extreme .50. when i installed the plug i notice the breech plug wrench that goes with the gun does not fit over the lehigh plug completely. it seems that the recess in the wrench is not deep enough to fit over the plug. is this normal? i can snug up the plug but i wish the wrench fit better, i don't want to take a chance of slipping off and rounding the corners of the plug.