
Availability: In Stock
The RCBS Small Base Die Set for 5.7x28 is purpose-built for reloaders working with FN's tight-chambered 5.7x28mm cartridge in semi-automatic, pump, or lever-action rifles. This two-die set delivers the precision resizing that modern defensive and competition shooters need when developing ammunition for firearms with strict chamber tolerances. If you're loading for an FN Five-seveN or other 5.7x28 platform, small base dies ensure reliable feeding and chamber fit by resizing cases below SAAMI minimums—reducing both shoulder and body dimensions by a few thousandths of an inch.
The set includes a Small Base Sizer with integrated Expander-Decapping Unit that strips out spent primers while it resizes, streamlining your press work. The included Regular Seater Die features a built-in roll crimper that secures the bullet and seats it in a single operation, improving consistency and reducing setup time. If your loads call for seating without a crimp, you can unscrew the die until the crimp ring disengages—giving you the flexibility to match your ammunition specifications.
Whether you're developing match rounds for precision shooting, reloading defensive loads for concealed carry, or simply maximizing the lifespan of expensive 5.7x28 brass, this die set handles the critical geometry demands that the 5.7x28 cartridge imposes. RCBS precision tooling ensures that your cases meet the demanding tolerances your firearm requires.
| Cartridge | 5.7x28mm (FN) |
| Die Type | Small Base (Group D Bottleneck) |
| Dies Included | 2 (Sizer with Decapper, Seater) |
| Sizer Features | Expander-Decapping Unit |
| Seater Features | Roll Crimper (disengageable) |
This small base die set is designed for 5.7x28mm cartridges used in semi-automatic, pump, and lever-action rifles with tight chamber tolerances, such as FN Five-seveN pistols and FN rifles. Small base sizing ensures reliable feeding and chamber fit for these firearms.
Yes. The Seater Die includes a built-in roll crimper, but you can disable it by unscrewing the die until the crimp ring no longer contacts the case mouth. This allows you to seat bullets without crimping if your load specification calls for it.
The set includes a Small Base Sizer with an integrated Expander-Decapping Unit (which removes spent primers) and a Regular Seater Die with a built-in roll crimper for bullet seating and crimping.
Small base dies resize cases below SAAMI minimums, reducing the shoulder and body dimensions by a few thousandths of an inch. This ensures proper fit and reliable feeding in tight-chambered 5.7x28 firearms.

SKU: 167523048 • Width: 5.95in • Height: 1.75in • Depth: 9.95in • Weight: 1.1oz
Availability: In Stock
The RCBS Small Base Die Set for 5.7x28 is purpose-built for reloaders working with FN's tight-chambered 5.7x28mm cartridge in semi-automatic, pump, or lever-action rifles. This two-die set delivers the precision resizing that modern defensive and competition shooters need when developing ammunition for firearms with strict chamber tolerances. If you're loading for an FN Five-seveN or other 5.7x28 platform, small base dies ensure reliable feeding and chamber fit by resizing cases below SAAMI minimums—reducing both shoulder and body dimensions by a few thousandths of an inch.
The set includes a Small Base Sizer with integrated Expander-Decapping Unit that strips out spent primers while it resizes, streamlining your press work. The included Regular Seater Die features a built-in roll crimper that secures the bullet and seats it in a single operation, improving consistency and reducing setup time. If your loads call for seating without a crimp, you can unscrew the die until the crimp ring disengages—giving you the flexibility to match your ammunition specifications.
Whether you're developing match rounds for precision shooting, reloading defensive loads for concealed carry, or simply maximizing the lifespan of expensive 5.7x28 brass, this die set handles the critical geometry demands that the 5.7x28 cartridge imposes. RCBS precision tooling ensures that your cases meet the demanding tolerances your firearm requires.
| Cartridge | 5.7x28mm (FN) |
| Die Type | Small Base (Group D Bottleneck) |
| Dies Included | 2 (Sizer with Decapper, Seater) |
| Sizer Features | Expander-Decapping Unit |
| Seater Features | Roll Crimper (disengageable) |
This small base die set is designed for 5.7x28mm cartridges used in semi-automatic, pump, and lever-action rifles with tight chamber tolerances, such as FN Five-seveN pistols and FN rifles. Small base sizing ensures reliable feeding and chamber fit for these firearms.
Yes. The Seater Die includes a built-in roll crimper, but you can disable it by unscrewing the die until the crimp ring no longer contacts the case mouth. This allows you to seat bullets without crimping if your load specification calls for it.
The set includes a Small Base Sizer with an integrated Expander-Decapping Unit (which removes spent primers) and a Regular Seater Die with a built-in roll crimper for bullet seating and crimping.
Small base dies resize cases below SAAMI minimums, reducing the shoulder and body dimensions by a few thousandths of an inch. This ensures proper fit and reliable feeding in tight-chambered 5.7x28 firearms.
SKU: 167523048 • Width: 5.95in • Height: 1.75in • Depth: 9.95in • Weight: 1.1oz
