Hornady Superformance SST Ammunition 257 Roberts +P 117 Grain SST Box of 20
You must be 21 years or older to order ammunition. Ammo must ship UPS ground. Due to Department of Transportation regulations, we cannot accept returns on ammo. Please check local laws before ordering.
- Videos (2)
Superformance ammunition is loaded with proprietary propellants that increase the velocity ratings up to 200 feet per second compared to other popular brands. Because there is no increase in pressure, regardless of the caliber, there is no increase in felt recoil but there IS an increase in efficiency and high speed performance. From sub-zero arctic temperatures to almost unbearable desert heat, Superformance ammunition can withstand any hunting condition.
Loaded with Hornady's InterLock Super Shock Tip (SST) bullet, this round combines proven Hornady performance with a higher ballistic coefficient than available with most hunting bullets. The sharp, pointed polymer tip creates a faster, flatter shooting bullet. With its one-piece core and jacket strengthened in critical areas, the SST delivers much more controlled expansion and superior weight retention than other tipped bullets. Featuring Hornady's trade mark InterLock ring system, this bullet's core and jacket remain locked solid during expansion, creating massive wound channels.
- Caliber: 257 Roberts +P
- Bullet Weight: 117 Grains
- Bullet Style: SST
- Case Type: Brass
- Muzzle Velocity: 2945 fps
- Muzzle Energy: 2253 ft. lbs.
The total weight of the product, including the product’s packaging as it sits on our shelf. Since some products ship directly from the Manufacturer, their weight may be unavailable. Because of variations in the manufacturing process, similar products may have differing weights. Unless the product is designated as “Ships Alone”, Shipping Weight does not include the shipping box or packing materials associated with your order.
Product ships from MidwayUSA, separate from any other products on your order due to its size. Products that are Shipped Alone incur separate "Per Order" and "Per Pound" shipping charges.
Product is regulated by the US Department of Transportation (DOT) and cannot be shipped via USPS or air shipping methods. DOT-Regulated products must ship UPS Ground.
Product is restricted by shipping carriers and cannot be shipped to certain locations or via certain shipping methods.
- Cannot ship via air
- Cannot ship via USPS
- Cannot ship to PO Box
Additional shipping charge for HazMat products. Carriers charge extra to ship packages with products they consider hazardous, such as reloading powder and primers.
Thank you! Your valuable feedback helps improve our product information and offering.
The statements and opinions expressed within Customer Reviews reflect each author's personal perspective and do not imply endorsement by MidwayUSA, its Employees or any other organization. Customers should in no way infer that MidwayUSA has validated review information as safe, accurate or appropriate.
Thompson Center Encore Pro Hunter Rifle Flex-Tech Buttstock...
$94.99 - $139.99
Thompson Center Encore Pro Hunter Rifle Forend
$39.99 - $64.99
Berger Hunting Bullets 25 Caliber (257 Diameter) 115 Grain VLD...
$45.99 - $209.99
Hornady Action Pistol (HAP) Bullets 9mm (355 Diameter) 115...
$13.99 - $352.99
Hornady Match Ammunition 30-06 Springfield 168 Grain Hornady...
Hornady Varmint Express Ammunition 204 Ruger 32 Grain V-Max
$19.29 - $41.99
CCI GamePoint Ammunition 17 Hornady Magnum Rimfire (HMR) 20...
$13.99 - $127.99
Norma USA TAC-22 Ammunition 22 Long Rifle 40 Grain Lead Round...
$6.49 - $64.99
GrovTec Sling Swivel Stud Pack 3/4" Wood Screw with Spacer
RCBS Rock Chucker Supreme Single Stage Press Large Primer...
RCBS Rock Chucker Supreme Single Stage Press Small Primer...
MTM Deluxe Flip-Top Ammo Box with Handle 378 Weatherby Magnum...
MidwayUSA Buttstock Rifle Ammunition Carrier Black
$5.99List Price: $9.99 Save $4.00 (40%)
Caldwell Orange Peel Targets 8" Self-Adhesive Bullseye
$3.99 - $49.99List Price: $5.49 - $52.99 Save up to $4.00 (22%)
Hunter's Specialties Field Dressing Gloves Combo with Wrist...
$1.99 - $6.99