I would save the new brass for hot loads and the used brass for target. For plinking, I don't worry about sorting headstamps (besides culling those bad ones mentioned above). If I am developing an accuracy load, then I match headstamps.
Rosewood
No problem at all ... that is what I thought you meant. My reply of "comfortably accurate" meant most of my pistol loads are middle of the road or slightly higher with few exceptions.I guess I should have better chose my words. Instead of "hot" loads I should have said max loads or near max.
Thank you for the replies ... all good, sound advice. I tried to use my favorite brass, Starline, or another I have used a lot ... Winchester. Problem is that in this market and in this area, I have yet to see any available. So I will use this mixed brass until availability improves in the future.
For those interested, here is a picture of the head stamp on the stepped brass I showed earlier. I have no idea what this head stamp says ...