Hello all, after purchasing my Marlin 795 today I ran into a slight problem. When I tried to buy some .22 LR ammo at Dick's Sporting Goods I was told I needed to be 21. After some research I now know that it's because of .22 pistols. Anyways, my question is, is there any way I can buy in store at the age of 20 if I can somehow prove it is for a rifle? If not, what are my options to obtain ammo? My parents are not very fond of me owning a gun so they are unwilling to help me out. If online sales are an option can anyone give me a site that isn't completely sold out? Thank you.