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Finding quality .243 WSSM brass isn't always easy, so having a box of Hornady cases on the bench is a real win for anyone feeding a Winchester Super Short Magnum. This is unprimed brass, meaning it's ready for you to prime, charge, seat, and go. The .243 WSSM is the short, fat version of the classic .243, built off the .300 WSM case and designed to push light .243 bullets at serious velocity out of a short-action rifle. Hornady brass gives you a dependable starting point for working up loads without fighting inconsistent cases.
Hornady puts real care into their case production, running smaller lots that hold tighter quality standards. The brass is measured for consistent wall concentricity, which helps the bullet seat straight in the case and line up properly in the chamber. That concentricity also aids a uniform bullet release on firing, which translates to better velocity consistency and tighter groups. Uniform case wall thickness and internal capacity are two things benchrest crowd has chased for decades, and both help keep your charges and pressures predictable.
The .243 WSSM uses a large rifle primer and runs a .243 diameter bullet, with most factory barrels cut to a 1-in-10 twist that handles the common 55 to 100 grain range nicely. Popular powders for this cartridge include the 4350 family and other medium-slow rifle powders, so pull your current load manual and work up from the published start charges. Since this case headspaces on the shoulder, set your sizing die to just kiss the shoulder on once-fired brass to get the most reloads out of each piece.
With Winchester having scaled way back on WSSM production over the years, keeping a stash of fresh Hornady brass means you can keep your rifle fed and your range days going. It's solid, repeatable brass that gives handloaders exactly what they want from a foundation component.
This is unprimed brass, so there's no primer seated in the cases. You'll need to add your own large rifle primers along with powder and bullets to assemble finished rounds. It's a blank slate ready for your reloading setup.
The .243 WSSM takes a standard large rifle primer. Always confirm against your current load data, since published recipes will list the exact primer and charge Hornady and other sources recommend for your chosen bullet and powder.
Yes, Hornady brass is built with uniform wall thickness and tight concentricity, which helps it hold up well across repeated firings. To get the most life out of each case, set your sizing die to just touch the shoulder on once-fired brass rather than pushing it back. Inspect your cases for signs of wear with each loading cycle.
The cartridge runs a .243 diameter bullet, and most factory rifles use a 1-in-10 twist that stabilizes the common 55 to 100 grain weights. Lighter bullets scream out of this short magnum for varmint work, while heavier options cover deer-sized game. Match your bullet choice to your rifle's twist and your intended use.
| UPC | 090255862027 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 86202 |
| Caliber/Gauge | 243 WSSM |
| Length | 4.5000 |
| Quantity | 50 |
| Shipping Weight | 1.67 |
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