For the price of 1000 rounds, you can buy a Lee Pro1000 set up for 9mm and all the components to load 1000 rounds.
While I keep a few boxes of factory ammo around, reloads are a lot less expensive, allow you to shoot more if you want and in reality, to keep a larger stock of ammo than you would otherwise be able to.
With all due respect, my math (and credit card statement) says otherwise. I just got into reloading with the hopes that I could save money, so far my hopes have been unfounded when it comes to 9mm at today's prices.
I agree that reloading (as part of a list of its benefits) can be an economical way to stock up and shoot for less in certain chamberings it 9mm is still cheap enough to make the difference between handloaded and factory ammo pretty small.
From several different places I can source factory FMJ 9mm for .20 a round or less. This works out to $200 per thousand. The Lee Press is about $180 by itself.
I personally have not seen unfired 9mm brass for less than .10 a piece and the cheapest I've seen once fired brass was .5 cents a piece I've never seen it actually in stock for that price. Still, lets go with .5 for 1000 pieces which makes it $50
The cheapest I've seen FMJ bullets is about .10 a round, most are a bit more than that but let's go with .10 which makes for $100 per thousand.
Small pistol primers, in my experience can be had for between .04 and .02 a piece. Let's average .025 so that makes it about $25 for primers.
Powder is harder to quantify because you'll probably not need a full pound of powder to make 1000 9mm, in that way, let me amortize the powder to get a real "as loaded" price.
Let's use 3.8 grains of titegroup as a good charge for practice FMJ ammo.
3.8 x 1000 = 3800 grains of powder. 1lb = 7000 grains so we'll be using just over a half pound of powder to make 1000 rounds. We'll go conservative and call it half a pound. The cheapest I've seen a pound of titegroup for is $16 so half of that would be $8
By my math, the components alone about about .18 cents around.
The above doesn't even consider haz mat charges and extras like scales, bullet pullers, calipers and other things that are important to have. It also assumes you have a suitable place to load and you won't need to purchase a loading bench.
All of that said, you can realize substantial savings on reloading other, more expensive and less available rounds like .41 mag for example. I can make it for less than half of what it costs to buy equivalent rounds.
You can really save money on 10mm, .357 sig and other magnum cartridges as well.
My point on all of this is that reloading is great but if you're getting into to save money on
9mm cartridges it might take a long time and a an awful lot of ammo to make up the difference between handloaded and factory ammo at today's prices.