Your not talking factory loads, you mentioned RELOADING. Your good with any brass until you push hard. Then things start to change between the brands of brass. One 5 round group will look great, perfect primers. The big thing every one forgets is that pressure sighs don't show up when your close to over, they show WHEN YOU ARE ALREADY OVER! The next one will have 3 blown primers, also blowing out the extractors while trying to shoot them. Only difference was the brass.
Shooting prairie dogs with safe loads you will never know the difference. Shooting 0.250@100 yd groups? you will learn there is a difference in brass