Lyman Pro 4-Die Pack for Mark 7 Press 300 PRC
Premium stainless steel reloading dies with carbide sizing rings, micrometer seating adjustment, and spring-loaded decapping for 300 PRC ammunition. Compatible with Mark 7, progressive, turret, and single-stage presses.
Lyman Pro 4-Die Set for 300 PRC
The Lyman Pro die set represents a significant advancement in reloading die engineering, purpose-built for high-volume ammunition production while maintaining exceptional precision for any reloading setup.
Construction & Materials
All dies are manufactured from stainless steel, selected for its superior durability and corrosion resistance. The sizing dies feature highly polished carbide rings that deliver exceptional wear resistance and dramatically reduce the force required during the sizing stroke—a critical advantage during extended reloading sessions.
Key Features
Sizing Die
- Spring-loaded decapping rod system ensures forceful primer ejection
- Carbide sizing ring for minimal wear and reduced effort
- Lyman's proven M die neck expander with two-step expander plug for precise neck tension control
Seating Die
- Micrometer-adjustable seating head for repeatable, precision bullet seating length
- Floating bullet seating punch centers the bullet and minimizes run-out
- Critical for consistent ballistic performance
Crimp Die
- Taper crimp design removes case mouth flare completely
- Improves bullet retention and feeding reliability
Versatility
While engineered for Lyman's Mark 7 progressive press, this die set performs flawlessly in progressive, turret, and single-stage presses. Whether you're loading high volumes or precision rifle rounds, these dies deliver the accuracy and reliability serious reloaders demand.
