Lyman Pro 4-Die Pack for Mark 7 Press 8.6 Blackout
The Lyman Pro 4-Die Pack for Mark 7 Press in 8.6 Blackout gives you a complete reloading die set engineered specifically for high-volume production on Lyman's Mark 7 progressive press—though these dies work equally well in turret and single-station presses. If you're serious about turning brass for this hard-hitting cartridge, this stainless steel die set delivers the precision and durability that define Lyman's Pro line.
Built around stainless steel construction for corrosion resistance and longevity, the sizing die features a highly polished carbide ring that cuts down on sizing force while resisting wear shot after shot. The spring-loaded decapping rod system ejects spent primers with authority, keeping your workflow clean and fast. You get Lyman's proven M die neck expander with its two-step expander plug—the first step opens the neck, the second sets consistent tension for reliable bullet seating and consistent velocities.
The seating die is where precision lives: a micrometer-adjustable head lets you dial in exact bullet seating depth to the thousandth of an inch, while the floating bullet seating punch centers each round and minimizes run-out. Round out the set with a taper crimp die that removes case mouth flare and locks bullets in place for dependable chambering and extraction. Whether you're loading match ammo for precision rifle work or hunting rounds for the field, this die pack gives you the control and repeatability that separate handloading from just throwing rounds together.

