It isn't worth it unless you shoot trap and skeet.
If you can pick up other peoples' empties to reuse that is even better as I have known guys when I was a kid that my father hung out with that became obsessive about retrieving their brass that they almost loose track of where their bird they just shot fell.
Reloading becomes more fun than the actual cost savings themselves as you gain flexibility that doesn't even come close to existing in the ammo shelf at the hardware store.
If you want to load .223 Remington down to much lower levels to make it a very quiet load for smaller critters at shorter range I'd be there are reipies that could fill BITOG. Then you can just bring the brass home and reload them.
But beware: you have to follow tested loads otherwise you can damage your firearm. For example, if you wanted to load .223 Rem down to say, 1200 fps with a heavier bullet, you'd do something like use a slow burning propellant that has case-filling properties. Then you'd have the ultimate quiet load that would be very economical to shoot and could never be purchased.
Powder AND primers have burn characteristics that have to be followed. From what I recall, Green Dot would be a very mild case filling power with a slow burn, but Bullseye would be a fast burning power would be for trying to get maximum fps in a short pistol barrel. (These are just examples and the specs may have changed if these powders even exist anymore if I even recall correctly).
So don't focus on saving money with this, it is more of a hobby and "money saved" doesn't equate with how many different loads you can do to customize everything your gun spits out.
Sometimes, handloading is absolutely the only way to shrink groups at the rifle range, as you can tune the case, powder and primer, along with bullet weight and burn characteristics for a given barrel length and twist rate. Even the powder column comes into play with the primer, even bullet seat depth to exactly touch the start of the rifling.
You'd have to figure out what you want to do and research the best names in the business to build your loading bench around. This is almost a hobby that has nothing to do with shooting itself.
Prepare to have fun without even shooting the stuff off, and be prepared to get a bookshelf down into the basement and scour used books for reloading manuals.
Trim your cases!!!