
Availability: In Stock
If you're a handloader who demands consistency and reliability in every round you fire, Nosler Custom Brass 257 Roberts +P delivers the foundation you need. This box of 50 premium cartridge cases comes fully prepped and ready to load, meaning you skip the tedious case-sorting and preparation work and get straight to fine-tuning your loads. The 257 Roberts +P is a capable medium-range cartridge that rewards careful handloading with excellent accuracy, and premium brass that's been through Nosler's meticulous prep process gives you the best shot at consistent results.
What sets Nosler's brass apart is the sheer amount of work they've already done for you. Every case is weight-sorted to exacting tolerances, flash holes are deburred and inspected for alignment, and the case mouths are chamfered inside and out. The brass is also full-length sized and trimmed to spec before it leaves the factory. This level of attention means less variance between cases and more predictable ballistic performance—critical when you're chasing tight groups at distance or building ammunition you'll trust in the field.
Each case bears the Nosler headstamp and is hand-inspected to meet dimensional standards. The brass is engineered for longevity and repeated reloading without degradation, so a single box represents a durable, reusable resource that'll handle many loading cycles. Whether you're zeroing a new rifle, developing a hunting load, or perfecting accuracy for competition, starting with Nosler Custom Brass removes one major source of inconsistency from your handloading bench.
| Cartridge | 257 Roberts +P |
| Quantity Per Box | 50 Cases |
| Manufacturer | Nosler |
| Case Preparation | Fully prepped: sized, trimmed, chamfered, deburred, weight-sorted, flash hole inspected |
| Weight Sorting Tolerance | +/- 0.5 grains |
| Condition | Unprimed |
Yes. Nosler Custom Brass comes fully prepped: sized, trimmed, chamfered, and deburred. Flash holes are checked for alignment. You can load them immediately without additional case preparation.
Weight-sorting groups cases of nearly identical mass (within +/- 0.5 grains in Nosler's brass). Uniform case weight promotes uniform powder capacity and burn rate, which improves load consistency and accuracy.
Nosler Custom Brass is engineered for maximum case life and unmatched reloadability. The exact number of reloads depends on your load density, pressure levels, and handling, but quality brass like this typically survives many cycles before needing retirement.
No. These are unprimed cases. You'll need to add primers during your handloading process.

SKU: 115811048 • Weight: 1.32oz
Availability: In Stock
If you're a handloader who demands consistency and reliability in every round you fire, Nosler Custom Brass 257 Roberts +P delivers the foundation you need. This box of 50 premium cartridge cases comes fully prepped and ready to load, meaning you skip the tedious case-sorting and preparation work and get straight to fine-tuning your loads. The 257 Roberts +P is a capable medium-range cartridge that rewards careful handloading with excellent accuracy, and premium brass that's been through Nosler's meticulous prep process gives you the best shot at consistent results.
What sets Nosler's brass apart is the sheer amount of work they've already done for you. Every case is weight-sorted to exacting tolerances, flash holes are deburred and inspected for alignment, and the case mouths are chamfered inside and out. The brass is also full-length sized and trimmed to spec before it leaves the factory. This level of attention means less variance between cases and more predictable ballistic performance—critical when you're chasing tight groups at distance or building ammunition you'll trust in the field.
Each case bears the Nosler headstamp and is hand-inspected to meet dimensional standards. The brass is engineered for longevity and repeated reloading without degradation, so a single box represents a durable, reusable resource that'll handle many loading cycles. Whether you're zeroing a new rifle, developing a hunting load, or perfecting accuracy for competition, starting with Nosler Custom Brass removes one major source of inconsistency from your handloading bench.
| Cartridge | 257 Roberts +P |
| Quantity Per Box | 50 Cases |
| Manufacturer | Nosler |
| Case Preparation | Fully prepped: sized, trimmed, chamfered, deburred, weight-sorted, flash hole inspected |
| Weight Sorting Tolerance | +/- 0.5 grains |
| Condition | Unprimed |
Yes. Nosler Custom Brass comes fully prepped: sized, trimmed, chamfered, and deburred. Flash holes are checked for alignment. You can load them immediately without additional case preparation.
Weight-sorting groups cases of nearly identical mass (within +/- 0.5 grains in Nosler's brass). Uniform case weight promotes uniform powder capacity and burn rate, which improves load consistency and accuracy.
Nosler Custom Brass is engineered for maximum case life and unmatched reloadability. The exact number of reloads depends on your load density, pressure levels, and handling, but quality brass like this typically survives many cycles before needing retirement.
No. These are unprimed cases. You'll need to add primers during your handloading process.
SKU: 115811048 • Weight: 1.32oz
