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Hornady Superformance 257 Roberts Ammo +P 117 gr SST 20rd box - Brass Casing


Hornady Superformance 257 Roberts Ammo  +P 117 gr SST 20rd box

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Fast

Superformance ammunition is 100 to 200 fps FASTER than any conventional ammunition on the market today, and achieves this performance in EVERY gun, WITHOUT increases in felt recoil, muzzle blast, temperature sensitivity, fouling or loss of accuracy.

Innovative

Superformance is a cutting edge technological advancement in ammunition design that transcends convention and achieves the highest performance of any ammunition on the market today.

Specialized

Superformance uses ultra progressive propellants that take your favorite SST or GMX bullets to levels of performance that are simply unattainable with conventional propellants. In order to get more velocity in the past – shooters have used a brute force approach – large charge weights of a slow burning powder in a larger cartridge case. Ultimately this leads to more recoil and muzzle blast. The Superformance solution is an elegant approach that utilizes specialized powders…at NORMAL charge weights, that impart ALL useable energy to the bullet reducing the ROCKET NOZZLE EFFECT at the muzzle while still increasing velocity!

Versatile

Superformance provides increased performance, and is safe to use in ALL firearms, including semi-autos*, lever gun and pump actions.

Increases in rifle performance, no increases in barrel wear and felt recoil, along with superior temperature stability are all realized with Superformance ammunition.


$50.86
Our Price
$41.49
You Save: $9.37
Price Per Round: $2.07
Financing Available
MFG: Hornady
Model: 81353
Bud's Item Number: 61046
UPC: 090255813531
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Retail Store Availability
In-Store Purchase Only
Lexington, KY Not in store
Greenville, KY Call for availability
Sevierville, TN Call for availability
9 Reviews

Hornady Superformance 257 Roberts Ammo +P 117 gr SST 20rd box
Fast

Superformance ammunition is 100 to 200 fps FASTER than any conventional ammunition on the market today, and achieves this performance in EVERY gun, WITHOUT increases in felt recoil, muzzle blast, temperature sensitivity, fouling or loss of accuracy.

Innovative

Superformance is a cutting edge technological advancement in ammunition design that transcends convention and achieves the highest performance of any ammunition on the market today.

Specialized

Superformance uses ultra progressive propellants that take your favorite SST or GMX bullets to levels of performance that are simply unattainable with conventional propellants. In order to get more velocity in the past – shooters have used a brute force approach – large charge weights of a slow burning powder in a larger cartridge case. Ultimately this leads to more recoil and muzzle blast. The Superformance solution is an elegant approach that utilizes specialized powders…at NORMAL charge weights, that impart ALL useable energy to the bullet reducing the ROCKET NOZZLE EFFECT at the muzzle while still increasing velocity!

Versatile

Superformance provides increased performance, and is safe to use in ALL firearms, including semi-autos*, lever gun and pump actions.

Increases in rifle performance, no increases in barrel wear and felt recoil, along with superior temperature stability are all realized with Superformance ammunition.

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9 Reviews. 4.3 out of 5 Stars!
5 Stars
67%
4 Stars
23%
3 Stars
0%
2 Stars
0%
1 Star
11%
Write Review
Michael B on 03/20/2026
Rating:   5 of 5 Stars!

I love Hornady ammo and this is top notch as well. Will definitely buy more. Buds has it reasonably priced and super fast shipping.

Jeff T on 12/10/2025
Rating:   5 of 5 Stars!

Item as described, worked good in my boys gun, quick shipping, will buy again

James M on 11/27/2025
Rating:   5 of 5 Stars!

Product was hard to find in New England, but buds had it. Competitive price fast shipping.

William D on 12/01/2023
Rating:   5 of 5 Stars!

shoots very good in my bob

Robert Z on 08/19/2023
Rating:   5 of 5 Stars!

Good ammo. Harvested big whitetail spike late season for freezer. Accurate.

Frank P on 10/29/2021
Rating:   4 of 5 Stars!

Purchased these 2 boxes as a Christmas gift to a close relative some years ago. He was having trouble finding it and when I checked Bud's, there it was!
Gift was greatly appreciated! It reportedly works fine in his sportsterized Mauser!
Excellent service from Bud's!

Richard T on 11/03/2018
Rating:   5 of 5 Stars!

Good ammo, good price, quick and easy delivery. Thanks Bud's, I'll buy again.

John V on 06/16/2017
Rating:   1 of 5 Stars!

After hand loading for years I wanted to try some factory loads in my Ruger 77 257 Roberts..As it turned out the Hornady SST 117 grain loads would produce 3 1/2 inch groups at 100 yards at best. I was vey disappointed as this was off a bench rest under ideal conditions. I would not recommend these loads to anyone.

Kurt W on 03/22/2017
Rating:   4 of 5 Stars!

So far I have not hunted with these but they have been very accurate in my rifle.

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