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Magnum vs Regular Primer

3690 Views 3 Replies 3 Participants Last post by  allconfederate
In the reloading manual I have it shows a load that requires a magnum primer. If a load requires a regular primer can a magnum primer be used in its place?
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mag primers

You can use the mag primer in place of the standard primer BUT, you must back off the load and work up with the new component. The mag primer is called for in the hard to ignite powders like W-296 and H-110. It will add a bit to the pressure so you have to work up a load just for it.
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