From a reloaders perspective. it's about the smallest cartridge anybody wants to load for. it's a low pressure cartridge. doesn't come with all the safety warnings that some like the 9mm and 40 s&w do. returns are good. I can load 50 rounds for $5 to $8 depending upon which bullets I use If I just reloaded 9mm and 223, I doubt I would. The savings just are not there, and while the case can be made that you are loading for ultimate performance in your particular firearm, in truth, off the shelf ammo usually performs just fine. It's the 380's, 25acp's and 45/70's that will pay for your equipment faster, if that is one of your requirements.