That dog may have five or six good years left. Lamar if you roll crimp those Magtechs they wont last long. If you're using them in a repeater you will have to have a slight taper on the mouth to get them to feed. If you're using them in a break action you don't have to taper them at all just run a bead of Elmers glue around the edge of the overshot card.
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