Regulating seating depth and the resulting “jump” to the rifling is widely regarded as fundamental to improved accuracy. A few thousandths of an inch change between the bullet and the rifling can make the difference between average accuracy and real tack-driver performance.
- Modified cases for use with Precision Gauges
- Uses fine thread to keep case square for precise chamber alignment
- Rounds neck of case and opens to allow a standard diameter bullet to slip into case mouth
