I bought an AR30 (.338 LM) from a friend and it came with 300 Barnes XLC 225 gr. bullets. I have had a challenge trying to get these to shoot. I have been assuming all along that it is me (I still have no reason to doubt that!), but I would like to know if any of you have experience with this round in this caliber? As soon as these are shot up, I will move up to 300 gr. SMK's. Thanks!!