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Starline has built a reputation as the go-to brass maker for pistol reloaders, and this unprimed 10mm Auto brass is a big part of why. Each case is new, uniform, and made to tight specs, so you're starting your load development with a clean, consistent foundation instead of a mixed bag of range pickups. Reloaders who run the 10mm regularly tend to reach for Starline because the headstamps stay crisp, the brass holds primers, and it keeps performing load after load.
These are large pistol primer cases, measuring roughly 0.984 to 0.991 inches in length. Because they ship as virgin unprimed brass, they generally don't need full-length resizing before that first loading, though it's always smart to check the box for any note about sizing. Starline is a family-owned operation that takes pride in turning out some of the cleanest, most uniform pistol brass you can buy, and the 10mm is no exception.
The 10mm Auto rewards good brass. It runs at higher pressures than most handgun cartridges, so case quality matters more here than it does with something milder. Starline 10mm typically handles a solid number of loadings before primer pockets start to loosen at moderate pressures, which is excellent life for an auto-pistol case. If you're chasing tight velocity spreads, sorting by weight helps, but for range, competition, or hunting loads the lot-to-lot consistency is good enough to skip that step.
Whether you're working up a full-house hunting load or stacking up affordable practice ammo, starting with fresh Starline brass takes a big variable out of the equation. Keep in mind these are unprimed cases and a reloading component only, not loaded ammunition, so you'll be supplying your own primers, powder, and bullets.
These cases ship unprimed, so you'll supply your own primers, powder, and bullets. They use large pistol primers. Keep in mind this is a reloading component only and not loaded ammunition.
In most cases this new brass does not require resizing before that first loading. Starline notes that if full-length sizing is needed, it will be called out on a note inside the packaging. It's always a good habit to inspect your cases before you start a batch.
Starline 10mm brass typically runs around eight to ten loadings before primer pockets begin to loosen at moderate pressures, which is excellent longevity for a high-pressure auto-pistol case. Running hotter, full-power loads will shorten that count, as it would with any brass. Many longtime reloaders consider Starline among the most durable pistol brass available.
This brass is designed for large pistol primers. Match your load data to that primer size when you work up a recipe. Pairing one lot of brass with one primer, powder, and bullet is the best approach for consistent results.
| UPC | 837306004032 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 10EUP100 |
| Caliber/Gauge | 10mm |
| Length | 0.984"-0.991" |
| Product Type | HANDGUN |
| Quantity | 100 Per Bag |
| Style | Large |
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