RCBS 99248 Shell Holder #48 for 300/338 Norma Mag & 338 Lapua Mag - Single Stage

If you're serious about reloading magnum rifle cartridges, you need the right shell holder to make it happen safely and consistently. The RCBS 99248 Shell Holder #48 is purpose-built for large magnum cases—specifically the 300/338 Norma Mag and 338 Lapua Mag—and it's an essential component of any precision reloading setup. This shell holder is designed to work with both single-stage and turret presses, keeping your case properly aligned with your dies from fireforming through final seating.

Shell holders are one of those reloading accessories that don't get much attention until you need the right one. The RCBS 99248 is manufactured from hardened steel, so it'll hold up to years of consistent use without wear or damage. Its critical job is to grip the case head securely and position it with the precision that magnum reloading demands. The holder captures 0.125 inch of case head, maintaining proper SAAMI headspacing so your rounds come out consistent and safe, whether you're loading for a long-range match, hunting expedition, or precision rifle course.

For anyone working with 338 Lapua Mag or the Norma magnum family, getting the right shell holder from the start beats troubleshooting fit issues down the line. RCBS shell holders are industry standard for a reason—they're reliable, durable, and sized specifically for the cartridges you're actually loading.

Key Features

• Hardened steel construction for durability in high-volume reloading
• Sized specifically for 300/338 Norma Mag and 338 Lapua Mag case heads
• Maintains proper SAAMI headspacing through 0.125 inch case head capture
• Compatible with both single-stage and turret presses
• Industry-standard RCBS quality and precision

Specifications

Part Number	99248
Shell Holder Size	#48
Cartridge Compatibility	300/338 Norma Mag, 338 Lapua Mag
Press Types	Single-stage, Turret
Material	Hardened steel
Case Head Capture	0.125 inch

Frequently Asked Questions

Will this shell holder work in my single-stage press?

Yes. The RCBS 99248 is designed for use in both single-stage and turret presses, so it'll function reliably in either setup.

What magnum cartridges does the #48 holder fit?

The RCBS 99248 Shell Holder #48 is sized for the 300/338 Norma Mag and 338 Lapua Mag. If you're loading a different cartridge, you'll need to verify the correct shell holder size for your specific round.

How does a shell holder maintain headspacing?

The shell holder captures 0.125 inch of the case head, positioning the case consistently with your dies so every round is formed and loaded to proper SAAMI specifications.

Can I use one shell holder for multiple cartridges?

No. Shell holders are sized specifically for individual cartridges or small families of cases with identical head dimensions. The #48 is designed only for the 300/338 Norma and 338 Lapua cartridges.