Magnum small pistol or standard
Quote from Hornday 7th edition on the subject of primers:
"Magnum primer ..... produce more useful in burn large volumes of powder in the Cartridge." "Under no circumstance should one switch to a magnum primer with a load developed with a standard primer."
So it looks like if you don't have a large cartridge like those in Magnum guns,
You should not be using magnum primers. I am starting to reload. And will be doing 9mm lugers, So i defiantly can not use magnum primer because the Cartridge is rather short and does not have a whole lot of powder to burn.
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