Because the primers are so small [ rifle or pistol ] you'll need a deprime tool made up that keeps the pin to knock out the primer centered very good. That pin is quite a bit smaller in diameter than what we're used to with the 209 primers. If you're going to use nitro powders in a brass case where you're not crimping you'll need about a 1/4" of brass above the OS card for glue to adhere to for enough resistance for a good powder burn. The reason I sold all those Magtecks was I didn't know back then what it took when using smokeless powders. Some form of enough resistance is necessary to get good loads. I now use a hot glue gun when loading 444 Marlins for my 410s.It's quick and easy to get enough glue for a good load. JMHO
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Paul Harm
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