The RCBS 7mm Backcountry Die Set is engineered specifically for reloading the 7mm Backcountry cartridge and its steel alloy case. Because this SAAMI-approved cartridge operates at pressures significantly higher than conventional rifle cartridges and uses a steel alloy case rather than brass the reloading process differs from traditional brass-case reloading in several important ways. Full 7mm BC reloading instructions below.
The three-die set includes:
- Neck Sizer Die: sizes the case neck only
- Expander Die: expands the case mouth to proper diameter and applies a slight flare (bell) so the bullet can be seated
- Taper Crimp Seater Die: seats the bullet and applies a taper crimp in one operation
Because this set neck sizes only cases must be reloaded for the same rifle they were fired in.
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