The MEC 600 Jr Mark 5 Single-Stage Shotshell Reloader in 20 gauge (brand part no. 844720) is billed as the world’s number one shotshell reloader. MEC built it around a quick, simple operation that takes minimal effort. A cam-action crimp die returns each shell to its original condition, and a one-piece Spindex crimp starter aligns with the original shell creases for a clean crimp. Expect to load four to six boxes per hour. If you shoot a lot of 20 gauge clays or hunt birds, it is a straightforward way to start loading your own shotshells.

Key Specifications

• The gauge is 20 gauge, the gauge this version is set up to load.
• It is a single-stage design, with quick, simple operation that takes minimal effort.
• A cam-action crimp die returns each shell to its original condition.
• The one-piece Spindex crimp starter aligns with the original shell creases for a crimp that looks right every time.
• Output is about four to six boxes per hour, a solid pace for a single-stage press.
• It is adjustable for 3-inch shells, so you can load longer hulls.
• The primer feed can be upgraded with the E-Z Prime 285 CA, sold separately, to avoid handling each primer individually.
• Die sets are available in all gauges, so one base can convert to another gauge.
• It is made in the USA by MEC.

Frequently Asked Questions

How fast can I load with the 600 Jr Mark 5? MEC says you can load four to six boxes per hour.

Can I load 3-inch 20 gauge shells? Yes. The reloader is adjustable for 3-inch shells.

Can I speed up priming? MEC offers the E-Z Prime 285 CA primer feed upgrade, sold separately, so you do not have to handle each primer individually.

Buy the MEC 600 Jr Mark 5 Single-Stage Shotshell Reloader, 20 Gauge

The 600 Jr has long been the entry point for handloading shotshells, and the Mark 5 keeps that simple operation with a cam-action crimp. This 20 gauge version is ready for clay and field loads. Order it from our Lubbock, Texas gun shop for fast, dependable shipping, and see more reloading presses and kits for your bench.