I keep my rifle brass separated but I buy either Rem or Win new brass or once Fired federal. Like you've read here, Using Lighter loads for practice is much easier on your brass, and hey you want to save money too? lighter loads cost less. Keep an Eye Out for case neck splits or burn cracks in body or radial cracking along the area just forward of the case head, sometimes you can feel these with dental pick or suitable sub. I only neck size where possible, and I have gotten alot of use out of my brass.
For pistol I shoot alot of .38 out of my 1950 K38 Target Masterpiece which has to be the most accurate revolver I have ever owned and I will risk no harm to it as it is precious to me.....my precious ah but back to the brass thing, I shoot light loads out of it and I have no idea how many times I have loaded the mix of brass I use for it. It has been very economical to shoot and popping the head off a grouse at 25 yards is never a problem even with a mix of brass in the cylinder. Now i can't see the head anymore so I just blast the hole thing.
Just get a case trimmer, cause brass stretches and the only way for a consistent crimp is to have all the cases the same length. also, primer residue can stop a primer from seating fully and cause a slam fire with an auto or cylinder hang up with a revolver. ( been there done that). Lee makes a small tool perfect for large and small primers. always clean primer pockets. wear eye protection, get a little piece of the residue in your eye and you will be at the eye doctor getting it out (been there done that too).
For social work in a handgun use factory loads, if they don't work your family will have someone to sue. For hunting I only use reloads but put up in prepped once fired brass. Unless I hunt with my flint lock, I have reloaded that hundreds if not thousands of times.