There's not a simple answer as the question is too general. The answer will depend on a number of things e.g. what calibre(s) you intend to shoot, purchasing cost of components at the time, charge weight of your desired loads, whether or not you value your time i.e. you could be earning instead of spending time reloading, and the amount earned over that time could be way in excess of what it costs to buy factory ammo (all dependant on individual circumstances).
If we overlook the value of time, my experience reloading for .308 is that the costs of components are cheaper than purchasing factory ammo. I think most would agree with that and I’ve assumed each new case will have no less than 10 firings, allows for cases to be annealed, postage costs etc. (I don’t have an annealer yet).
For me, the cost of components for each .308 round is between £1 to £1.50 per round depending on what bullet I’m loading. Equivalent factory ammo costs £2 to £3 per round.
So, it can save money and the capital invested in reloading equipment should pay for itself overtime, depending on how much you shoot.
My advice would be, don’t start reloading purely for cost benefits. I’ve found now I reload I’m wanting to and do shoot more frequently, than what I would have if I only had factory ammo. Also reloading can take a fair amount of time and patience. If you have time, patience, want to understand more about internal and external ballistics, enjoy the flexibility associated with reloading, then I’d say go for it. You shouldn’t be disappointed and as a bonus you may find you save a bit when compared with shooting the equivalate number of factory rounds...
