Just curious as I dislike Walmart, ( These are no better than the Nazis) , haven't been in one in about 25 yrs, and don't intend to walk into one ever once more. Here is the sporting version of 7,62x51mm NATO. It had been introduced by Winchester in 1952 - https://556-ammo-bulk-for-sale52051.blogacep.com/37525194/ammo-for-sale-in-connecticut-for-dummies