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When you're feeding a Marlin lever gun, a Ruger No. 1, or a trapdoor and you want cases you can trust with serious loads, Starline .45-70 brass is about as good as it gets. These are new, unprimed cases made from a 70/30 brass alloy and held to tight tolerances, so the primer pockets are snug, the headstamps are crisp, and the necks size down without a fight. Reloaders who run this caliber tend to name Starline as their first pick, and plenty of small ammo makers load it exclusively.
The big story with this brass is how much metal is in it. Starline runs these cases on the heavy side compared to other brands, which means thicker walls and a case mouth that takes real pressure to deform. That extra brass gives you a case that springs back to size after firing, chambers and ejects clean, and holds up to repeated loadings. The tradeoff is slightly reduced internal capacity, so keep that in mind when you're working near the top of your load data.
Starline tests this brass at elevated pressures suitable for magnum heavy hunting loads in adequate rifles, and the cases are left a touch stiffer on purpose so you can anneal them to fit your own application. Running black powder or lighter loads? A quick anneal at the mouth helps the case seal the chamber properly since those loads generate lower pressure. As with any new rifle brass, it's smart to size, trim, and chamfer before that first loading to make sure the necks are round and everything chambers smooth. One thing worth noting: this brass is stout enough that a hand tong tool struggles with it, so a good press and proper case lube make the job a lot easier.
Starline has been making brass in Sedalia, Missouri for over 45 years, and the reputation shows up on the bench. Guys report high load counts, primer pockets that stay tight, and cases that keep going long after cheaper brass would have split. If you're serious about your .45-70 handloads, this is a case you can build on.
Starline recommends sizing new rifle brass before that first loading to make sure the case necks are round and everything chambers cleanly. It's also a good idea to trim and chamfer at the same time. The good news is these cases size down without excessive effort as long as you use proper case lube.
Yes. Starline tests this brass at elevated pressures suitable for magnum heavy hunting loads in rifles rated for them, like modern Marlin and Ruger actions. The cases are built thick and heat treated for strength, which is exactly why so many reloaders trust them for stout loads. Always stay within published load data for your specific firearm.
Starline leaves the brass a little stiffer on purpose so you can anneal it to fit your application. Black powder and lighter loads generate lower pressure, so annealing the case mouth helps it expand and seal the chamber properly. For full-pressure smokeless loads, the brass is ready to go without extra annealing.
Reloaders regularly report high load counts with this brass, with many getting numerous firings before any concern of splitting. The primer pockets tend to stay tight and the cases hold their shape well over repeated loadings. Annealing the mouth every few firings helps extend case life even further.
| UPC | 837306004537 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 4570EUP50 |
| Caliber/Gauge | .45-70 Government |
| Length | 2.095"-2.102" |
| Product Type | Rifle |
| Quantity | 50 Per Bag |
| Style | Large |
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