Mine didn't save me any money off the top, b/c I have ALOT of calibers I have to reload for, and dies and bullets and brass and powders and blah blah blah, I spent enough to buy a decent used car. LOL But if you are reloading for 1 or 2 calibers, you can get a nice setup for under $500.
However, my ammo price went from $4.33 a round for my 7mmSTW and .257 Wby Mag, to about $0.85 per round (not including brass, b/c I used surplus brass supplies I had saved up from all the years before I reloaded), with super high-grade components that are 100% accurate in capacities and consistancy. Not to mention, that I KNOW what's inside my ammo instead of some mystery powder.
The great thing about reloading (other than cost effectiveness) is that you can mix and match bullets and powders to find the perfect combo your gun likes.
Or, if you're like me, and you prefer a certain bullet for a certain caliber, and you can't purchase that same combination in factory loaded form, then you get to make your perfect ammo for your specific needs or purpose.
For example, I love Berger bullets b/c they shoot phenomenally out of all of my rifles. But finding factory loaded .257 Weatherby ammo with 115gr Berger VLD's is not gonna be possible. But I have some for deer this year, and I can't wait to see how they perform.