{"product_id":"mec-600-jr-410-bore-shotshell-die-set-pre-mark-5","title":"MEC 600 Jr 410 Bore Shotshell Die Set - Pre Mark 5","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eMEC 600 Jr 410 Bore\u003c\/span\u003e\u003c\/strong\u003e shotshell reloading die set converts your \u003cstrong\u003eMEC 600 Jr\u003c\/strong\u003e shotshell reloader to load \u003cstrong\u003e410 Bore\u003c\/strong\u003e shotgun shells. Machined from \u003cstrong\u003ehigh tensile steel\u003c\/strong\u003e, this single-cavity die set delivers precise resizing, depriming, and roll crimping for \u003cstrong\u003e410 Bore\u003c\/strong\u003e shotshells on the 600 Jr press platform.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003ePre Mark 5\u003c\/span\u003e\u003c\/strong\u003e configuration is the correct die set for \u003cstrong\u003e600 Jr\u003c\/strong\u003e presses produced before the Mark V tooling update, specifically units manufactured prior to 1982 and from 1982 through 1985. It is not compatible with the current \u003cstrong\u003e600 Jr Mark V\u003c\/strong\u003e press, which uses the updated Mark V die set.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe set includes a \u003cstrong\u003esize pilot die with roll crimper\u003c\/strong\u003e, a \u003cstrong\u003eshell holder die with roll crimper\u003c\/strong\u003e, a \u003cstrong\u003eK.O. bushing\u003c\/strong\u003e, a \u003cstrong\u003eresize ring\u003c\/strong\u003e, and a \u003cstrong\u003edeprime punch\u003c\/strong\u003e, everything needed to switch your press over to \u003cstrong\u003e410 Bore\u003c\/strong\u003e. Whether you are loading light target shells, plinking rounds, or hunting-grade \u003cstrong\u003e410 Bore\u003c\/strong\u003e shotshells, this MEC die set provides the consistent sizing and crimping performance the 600 Jr platform is known for.\u003c\/span\u003e\u003c\/p\u003e","brand":"MEC","offers":[{"title":"Default Title","offer_id":55310162460994,"sku":"8335410","price":156.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/alt_5017a670-c91f-4fe8-8f17-b1dedef46ab2.jpg?v=1785130109","url":"https:\/\/centerfiresystems.com\/products\/mec-600-jr-410-bore-shotshell-die-set-pre-mark-5","provider":"Centerfire Systems","version":"1.0","type":"link"}