Third, if you are reloading to save money, there is little/no need to buy new brass. Range brass for straight-walled revolvers is a great value.
There's no need, but I think new reloaders are often well-served by minimizing the number of variables they are dealing with. I know many people reload mixed headstamp brass, but I would urge a new reloader to get their feet under them using only one headstamp (and a good one at that). Troubleshooting is made much harder when you don't know what inputs are responsible for the problems. Stuff that experienced reloaders navigate with sub-conscious competence can be a source of great consternation to the new reloader.