Check the listing for details. Mec 600 JR MARK V Shotshell Reloader Single Stage 10 Gauge - 844710. Condition: Used. Listed at 249.99 USD. The Mec 600 JR MARK V Shotshell Reloader Single Stage 10 Gauge is a high-quality reloading press designed specifically for 10 gauge shotgun ammunition. Manufactured by MEC, this reloader is simple to use and efficient for reloading your own shells. Weighing 15.95 lbs, it is durable and reliable for both home use and at the range. Perfect for hunters and sportsmen looking to enhance their shooting experience with hand-crafted ammunition. Used but like new