So today I made a complete goofball mistake. I was out shopping with the wife, and we stopped off at walmart. I went back to sporting goods and was all excited to get some rounds for my 300wsm. So I asked the clerk for them, and got them with everything else the wife was wanting. We get out to the car, and I pulled the box of ammo out of the bag to take a look at it. As soon as I pulled it out, I realized I had made a VERY newbie mistake. I forgot to double check the ammo. I purchased a box of 300 win mag, not 300 wsm. so now I have spent $30 on a box of ammo, and walmart's policy is, once you leave the store with it, it's yours. They wouldnt even exchange them !! Soooo upset at myself right now !!!