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Peterson built its reputation on brass that rivals the big European names, and this .260 Remington small rifle primer case is a great example of why. Each piece runs down a modern, small-batch case line and gets held to a match-grade standard from the production floor through quality control and into the box. For anyone chasing single-digit standard deviations and tight groups out of their 6.5mm rig, this is the kind of foundation that makes the rest of your load development easier.
The small rifle primer pocket is the headline feature here. Because there's more material in the case head around a smaller pocket, these cases tend to stay tight longer, which means more reloads before you start losing primers. Peterson's own testing shows the SRP design holding up over SAAMI max pressure in their universal receiver, and plenty of reloaders report lower velocity spreads and better case life after switching from large primer brass. It's a popular route for competitive loaders running extruded powders like the 4350 family.
The .260 Remington is a 6.5mm built on the .308 Winchester case, simply necked down to take a .264 bullet. It delivers excellent ballistics with noticeably less recoil than its parent case, which is why it earned a loyal following among High Power and long-range crowds. Reloaders can run anything from light 85 grain bullets up to heavy 160s, so there's plenty of room to tune a load for targets or hunting.
One thing worth knowing before you start: all Peterson SRP casings use a small flash hole measuring 0.060 inches instead of the 0.080 inch hole on their large primer brass. That means you'll want an undersized or extra-small decapping pin to deprime these without bending anything. These cases come annealed and cleaned, so they're ready for sizing and prep straight out of the box. Small rifle primer brass runs best in warmer conditions, and it's worth checking with your gunsmith on whether your rifle's firing pin is set up for small primers before you load a batch.
The smaller pocket leaves more material in the case head, which helps the pocket stay tight for more reloading cycles. Many competitive loaders report lower velocity spreads and more consistent ignition compared to large primer brass. Peterson has also shown this SRP design holds up over SAAMI max pressure in their own testing, so it's a good choice for loaders pushing warmer loads.
Yes. These SRP cases use a 0.060 inch flash hole instead of the larger 0.080 inch hole found in Peterson's large primer brass. You'll want an undersized or extra-small decapping pin to deprime them cleanly, otherwise a standard pin can bind or bend.
The cases come annealed and cleaned, so they're prepped for sizing and load development right away. As with any new brass, most reloaders still run them through their normal case prep steps like checking length and uniforming the pockets. The brass ships in a reusable plastic hinged box to keep everything organized.
It's a smart idea to confirm your rifle's firing pin and bolt are set up for small rifle primers, since some rifles benefit from a bushed firing pin to avoid pierced primers. SRP brass also tends to perform best in moderate temperatures rather than extreme cold. A quick conversation with your gunsmith will tell you exactly what your setup needs.
| UPC | 859449006582 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 40009-R |
| Quantity | 50 |
| Shipping Weight | 1.6 |
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