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RCBS
The RCBS 17701 Full Length Die Set for 338 Remington Ultra Magnum Reloading is purpose-built for handloaders working with 338 RUM bottleneck cases. This two-die set gives you the precision tools needed to consistently reload this magnum cartridge to SAAMI minimum dimensions, ensuring reliable chamber fit and performance across your firearms.
The Full-Length Sizer Die handles the heavy lifting: it sizes the case body, de-primes spent primers, and expands the neck to accept a fresh bullet. Vents built into the die prevent air trapping and excessive lubricant buildup that can damage cases during the sizing stroke. By holding headspace to minimum tolerances, the sizer preserves your case dimensions without unnecessary stretching of the body—critical for magnum brass that costs money and takes time to form properly.
The included Seater Die seats bullets with precision while a roll crimper secures the round in a single stroke, saving you a step and delivering consistent neck tension. For anyone serious about 338 RUM reloading—whether you're handloading for a long-range hunting rifle or precision magnum shooting—this set delivers the controlled, repeatable results that separate quality handloads from hasty ones.
| Product | RCBS 17701 Full Length Die Set |
| Caliber | 338 Remington Ultra Magnum |
| Cartridge Type | Bottleneck |
| Dies Included | Full-Length Sizer Die with Expander-Decapping Unit; Seater Die with roll crimper |
| Die Count | 2 |
The set includes a Full-Length Sizer Die with an Expander-Decapping Unit and a Seater Die with a built-in roll crimper. That's two dies total, covering sizing and seating in one package.
Yes. This die set is specifically designed for 338 RUM bottleneck cases and sizes them to SAAMI minimum cartridge dimensions for reliable feeding and chamber fit.
Yes. The Full-Length Sizer Die includes vents to prevent case damage caused by trapped air and excessive lubricant during the sizing stroke.
Yes. The included Seater Die has a built-in roll crimper that secures the bullet at the same time it seats it, combining two operations into one step.
RCBS
The RCBS 17701 Full Length Die Set for 338 Remington Ultra Magnum Reloading is purpose-built for handloaders working with 338 RUM bottleneck cases. This two-die set gives you the precision tools needed to consistently reload this magnum cartridge to SAAMI minimum dimensions, ensuring reliable chamber fit and performance across your firearms.
The Full-Length Sizer Die handles the heavy lifting: it sizes the case body, de-primes spent primers, and expands the neck to accept a fresh bullet. Vents built into the die prevent air trapping and excessive lubricant buildup that can damage cases during the sizing stroke. By holding headspace to minimum tolerances, the sizer preserves your case dimensions without unnecessary stretching of the body—critical for magnum brass that costs money and takes time to form properly.
The included Seater Die seats bullets with precision while a roll crimper secures the round in a single stroke, saving you a step and delivering consistent neck tension. For anyone serious about 338 RUM reloading—whether you're handloading for a long-range hunting rifle or precision magnum shooting—this set delivers the controlled, repeatable results that separate quality handloads from hasty ones.
| Product | RCBS 17701 Full Length Die Set |
| Caliber | 338 Remington Ultra Magnum |
| Cartridge Type | Bottleneck |
| Dies Included | Full-Length Sizer Die with Expander-Decapping Unit; Seater Die with roll crimper |
| Die Count | 2 |
The set includes a Full-Length Sizer Die with an Expander-Decapping Unit and a Seater Die with a built-in roll crimper. That's two dies total, covering sizing and seating in one package.
Yes. This die set is specifically designed for 338 RUM bottleneck cases and sizes them to SAAMI minimum cartridge dimensions for reliable feeding and chamber fit.
Yes. The Full-Length Sizer Die includes vents to prevent case damage caused by trapped air and excessive lubricant during the sizing stroke.
Yes. The included Seater Die has a built-in roll crimper that secures the bullet at the same time it seats it, combining two operations into one step.
