New vs Once-Fired Brass — What Every Reloader Should Know
6 min read
Brass is the most expensive reusable component in a cartridge, and also the one you have the most options on. You can buy it new, used, sorted, processed, or pick it up off the range floor. Here's what each option actually gets you.
New (virgin) brass
Straight from the manufacturer, unfired and usually unprimed. Premium brass makers (Lapua, Peterson, Norma, Nosler, Alpha) match case weight and volume to tight tolerances, so charge-to-charge pressure is consistent and primer pockets stay tight for many firings. Starline, Hornady, and Winchester new brass is a step down in consistency but still excellent for everyday loading.
Buy new when: you're load-developing for precision, you need a specific headstamp for match rules, or the cartridge is uncommon enough that you won't find once-fired at a reasonable price.
Browse live pricing on new brass.
Once-fired brass
Cases that have been fired one time, collected (usually from military ranges, indoor ranges, or commercial shoot boxes), inspected, and sold. The price is typically 30–60% less than new. Processed once-fired brass has been deprimed, sized, trimmed to length, and sometimes had primer-pocket crimps removed — it's ready to prime and load. Unprocessed once-fired is cheaper but you do that work.
Buy once-fired when: you're loading volume for practice or 3-gun, or you want to bring per-round cost way down. Every cartridge on /brass/once-fired shows live pricing across the specialty retailers.
Mixed-headstamp brass
Once-fired with an assortment of manufacturers mixed in the bag. Cheapest option, and perfectly fine for plinking or blasting ammo. The tradeoff: case capacity varies between headstamps, so velocity and pressure can shift 50–100 fps between rounds with the same charge. Don't use mixed-headstamp for anything where consistency matters — match loads, hunting ammo, or max charges.
What “processed” means
When brass says “fully processed”, look for these steps completed:
- Deprimed (old primer removed)
- Wet or dry tumbled clean
- Full-length resized to SAAMI spec
- Trimmed to uniform length
- Primer pocket crimp removed (for military brass)
- Chamfered/deburred case mouth
Fully processed costs a few cents more per case than “cleaned only”. For volume reloading it's usually worth it — one trimming step across 1,000 cases is 2–3 hours of your time.
Rimfire brass: don't bother
.22 LR, .22 WMR, .17 HMR, and other rimfire cartridges have the priming compound spun into the case rim itself. Once fired, the rim is dented and the primer compound is consumed. There's no way to reprime them. Any “once-fired .22 LR brass” for sale is for craft projects, not reloading.
When the math works
For a practical example: at 9mm Luger current prices, new Starline brass runs around $0.14 per case; processed once-fired runs around $0.05. Fire each case 8 times and that's $0.018/round on new vs $0.006/round on once-fired — a half a cent per round savings. Over 5,000 rounds, you've saved about $60. Whether that's worth the slightly higher variance depends on what you're shooting.
Plug your own numbers into the cost-per-round calculator.