I would echo much of this thread and some of the experts who have already commented.
Reloading is a wonderful hobby, but only in very special circumstances should it be undertanken as a means of saving money, especially if you are not thrilled with the hobby.
This is doubly true for common rifle calibers that are commercially manufactured and for certain military calibers for which surplus government manufactured ammo is available. The reason is that most rifle shooters, unless they are into target shooting (in which case reloading for accuracy/performance will be the real reason), don't shoot all that many rounds a year and it would take a lot of rounds to ammortize the investiment in loading equipment and supplies, especially if you don't value your time (i.e. it is a hobby you enjoy).
A second reason is that reloading usually implies "load work ups." This means that you will be shooting rounds (translation = spending money & time), that you normally wouldn't shoot when you purchase commercial ammo. Again, from a hobby perspecitive, load workups are part of the fun of claiming responsibility for the accuracy of your round.
If you do competitive shooting (and go throught lots of ammo that can amortize the capital investment), if you want a new hobby and don't value your time for other things, or if you want to shoot a firearm in a caliber where the ammo is hard to get or very expensive, then reloading might be a way of saving money.
Further, if you shoot a fair amount and are willing to shoot cast lead bullets and mold wheel weights or salvaged lead into the bullets you reload, then there is the potential for saving real money (by involvement in a hobby with serious health risks if you don't do it right).
I think that the majority of folks on this thread feel reloading is something "most folks do" for reasons other than saving money.
A final though is the economic concept of sunk cost. Once you have the reloading press, dies, scale, bench-full-of-gadgets, powder, bullets, primers, brass cleaning equipment purchased; then the incremental out of pocket cost of putting together a couple boxes of ammo is trivial. It is only every so often that you seem to need to buy another pound of ammo or 100 rounds of bullets or box of 1000 primers and then if it is only one of them then it is usually a $20 bill or less and an excuse to go to the local gun show or gunshop. In those circumstances, reloading "appears" to be very inexpensive, when infact the initial decision may not have been entirely economic.
I think reloading is a wonderful hobby that every serious shooter should experience.