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These Berry's .40 cal/.401 180 grain round shoulder bullets are a go-to for reloaders who want jacketed-style performance without the jacketed price tag. Each projectile starts as a swaged lead core that gets electroplated with copper to its final weight, then re-struck in a carbide die so every bullet comes out uniform and concentric. That double-struck process is the secret behind the consistency Berry's is known for, and it translates to tight, predictable groups on paper.
The "RS" profile is a hybrid shape, part flat nose and part round nose. It carries a flat point for clean target holes and positive impact, but the rounded shoulders help it feed slick through semi-autos that can get fussy with a true flat-point bullet. The round shoulder also takes up less room in the case, which gives handloaders a little extra flexibility when working up loads and chasing a specific power factor. Diameter runs .401, which is right where you want it for .40 S&W and 10mm.
These are plated, not fully jacketed, so treat them accordingly at the bench. Berry's rates them to a max velocity of 1250 fps, so keep your loads in that window and you'll be in good shape. Lead or cast load data for the same 180 grain weight and profile works fine as a starting point, and a light taper crimp is the way to go. Avoid over-crimping, since biting too hard into the plating can cause separation and foul your bore. A dummy round to confirm your overall length is always smart before you run a batch.
Because the copper plating fully covers the core, you get far less lead fouling in your barrel, feeding ramp, and forcing cone compared to bare cast bullets. That means easier cleanup and a projectile that's friendly for indoor range sessions where airborne lead is a concern. For anyone loading up .40 or 10mm practice ammo by the hundreds, this 250-count box is a smart, economical way to keep feeding the range habit.
Round shoulder, or RS, is Berry's hybrid profile that blends a flat nose with rounded shoulders. The flat point punches clean holes in paper while the rounded shoulder helps the bullet feed smoothly through semi-autos that can be picky with standard flat-point bullets. It's essentially the equivalent of a round nose flat point.
Yes. The .401 diameter and 180 grain weight work for both .40 S&W and 10mm loads. Just use the correct overall length and load data for whichever cartridge you're building, and keep velocity at or below the 1250 fps max rating.
Plated bullets like these use lead or cast load data for the same 180 grain weight and profile as a starting point. Keep velocity under the 1250 fps maximum and apply a light taper crimp. Over-crimping can cut into the plating and cause separation, so go easy at that stage.
The copper plating fully encapsulates the lead core, so you get much less lead fouling in your bore, feed ramp, and forcing cone than you'd see with bare cast bullets. They're also friendlier for indoor ranges where airborne lead matters. And they cost less than full jacketed bullets, which makes high-volume practice a lot more affordable.
| UPC | 711148316464 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 31646 |
| Caliber/Gauge | 10mm |
| Grains | 180 |
| Quantity | 250 |
| Shipping Weight | 6.7 |
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