If you are getting all of your Local Police Range's brass,, why not sell the reloaded ammo back to them?
That way you'd only have one customer to please.
Also if you are setting up for pistol rounds then you need to include .40 S&W from the start. Most police are using that round nowadays.
Also please realize that none of us are saying you can't do this,, we are saying you shouldn't do this. For all of the above reasons. I will include some reality about money versus time spent to follow.
I have ran a production machine shop for the last 30 years.
I have probably pulled handles on machines a million plus times.
How many rounds of ammo have you loaded in your life? a million? It is the exact same type of work.
In order to do meaningful production you must keep the machine running at all costs. Every minute you are not pulling the handle is a minute of production you have lost, and you can't get it back. The only way to multiply production is with more machines and more people to run them or Automate.
Everytime you have to make an adjustment to a set up, fill the Powder, Primers, Boolits, change overs to different calibers, you lose time and production. and ultimately $.
If you are looking at selling a gun shows you will have to show up with sufficient product to not run out during the first 4 hours of the show. The outfits I see at CA guns shows are showing up with 1,000's and thousands of each popular caliber . There are lines a mile long around their tables. They don't run out until late Sunday afternoon and bring their product in Semi Trailers! Oh, and you have to sell for less than they do, or people will just stand in line.
On your 650 you should be able to produce 500 rounds an hour average under Ideal Circumstances. Except you are making boolits too, so cut that in half. That's 2,000 rounds per 8 hour day under Ideal Circumstances.
Do you have people that can help you run the machine? It has to keep running for you to make quota.
Ideal Circumstances DO NOT Exist! There is always something to stop the machine,,,and if you are my age you will be doing good to stand in front of that machine for 30 min at a time. I personally load in 15 minute or 100 round volleys and take a break between rounds. But I am only supporting my shooting habit.
This all comes down to the Realistic amount of product per hour you can produce.
It is all about the numbers, because rounds per hour less overhead equals $ per hour. At say $25 for 100 9mm's x 20 = 2000 rounds per day, or $500 per day less components and Whatever your time is worth and overhead (electricity, a place to do it, and all the in sundry things that contribute to the cost of producing that product or go into doing anything as a business.) or a hobby, since nothing is free.
IN order to keep any business afloat, IE: just above break even,,, you MUST sell product at 110-120% above the all inclusive cost to produce the product.
If you can't produce and sell at or above these numbers you will fail... Period!!!
Been there, done that. It doesn't matter how low your expectations are, they will not be met below that level.
You say you just want to support your shooting habit, and this is fine.
But how much are you really willing to work to support that habit? Because if this businesses only reward is supporting your shooting habit then you probably won't be shootin' very much.
What you are proposing is a lot of work for little reward, and I will submit that you aren't going to have time for your shooting hobby.
My whole point of spending an hour to write this post is to make you aware that there is ALOT more to this than meets the eye, and when you have a good realistic look at the whole picture you will probably agree with me. Also the Liability issues, whereas very real, are the least of your worries. Making the numbers work are the real test,,, and they are the reason why the rest of us don't do it!
Randy