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Peterson Cartridge built its name on brass that shoots tight and lasts, and their 400 Legend brass carries that same reputation into Winchester's big-bore straight-wall. This is Peterson's first straight-wall offering, and it was developed with hunting reliability and long reload life in mind. For anyone running a 400 Legend bolt gun or AR-15, this is the kind of foundation that lets you dial in a load and trust it from the first shot to the last.
The 400 Legend is a rebated, straight-wall case measuring 1.650 inches, built around a .440 base diameter and a Small Rifle primer pocket. Peterson runs their cases on a state-of-the-art line and puts every one through both automated and hand inspection, which keeps weight, wall thickness, and flash holes uniform lot to lot. That consistency is what shows up on a chronograph as low standard deviations and steady velocity round to round.
These cases arrive ready to load with minimal prep, so a lot of reloaders can get straight to the bench without a long sorting session. Keep in mind the 400 Legend runs a Small Rifle primer, so make sure your primer stock matches before you start. Powders like Hodgdon H110, Winchester 296, and Lil'Gun are popular choices for this cartridge, and pairing them with uniform Peterson brass helps wring out the accuracy the 400 Legend is capable of inside 300 yards on deer and hogs.
Peterson is a family-owned Pennsylvania outfit that dedicates its whole operation to brass, and that focus pays off in the field. The 400 Legend cases are engineered to reduce runout and hold up through multiple firings with proper care, which means more loads per case and more rounds downrange for your money. If you want straight-wall brass that treats your hunting handloads like match ammo, this is a strong pick.
The 400 Legend uses a Small Rifle primer pocket, so you'll want to stock Small Rifle primers for these cases. Many handloaders have had good results with magnum primers like the CCI 450 for more uniform ignition in this cartridge. Double-check your primer supply before you start a loading session.
These cases are unprimed and arrive ready to load with minimal prep. Peterson centers and deburrs the flash holes, chamfers the case mouths, and holds tight dimensions, so many reloaders skip the heavy sorting step. You'll still want to size, prime, and work up your load as usual.
Yes. The 400 Legend was designed as a straight-wall cartridge that feeds in both bolt guns and the AR-15 platform, and this Peterson brass is made to those same dimensions. Just load to a safe overall length for your specific chamber and magazine.
Peterson builds its brass with durability in mind, and the company is known for cases that deliver more loads than the industry average when cared for properly. Reloaders regularly report long case life across Peterson's lineup. Your actual count depends on load pressure, sizing practices, and how well you maintain the brass.
| UPC | 810068271386 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 40081-R |
| Quantity | 50 |
| Shipping Weight | 1.9 |
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