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Hot Topic (More than 10 Replies) magnum primer question. (Read 1581 times)
Cbashooter
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Re: magnum primer question.
Reply #15 - Sep 6th, 2023 at 3:18pm
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"And we must not forget the pressures in rifle cases are greater than in pistol cases and the thicker walls of the rifle primers are designed to contain it better"

I guarantee my 44 magnum and 45 Colt Ruger loads are higher pressure than my 32-40 Schuetzen loads! 
  
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Jeff_Schultz
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Re: magnum primer question.
Reply #16 - Sep 6th, 2023 at 5:07pm
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GWarden wrote on Sep 6th, 2023 at 3:11pm:
mag primers are needed for best results when using 300MP powder in the 32/40 and 38/55

  That is absolutely correct!
  
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joelpend
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Re: magnum primer question.
Reply #17 - Sep 26th, 2023 at 9:24pm
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I have seen primer tests that indicate some magnum primers are no hotter than standard primers. I think it is fine to try them and for loads less than max I suspect you can use the same charge. I have tested them before and noticed no significant difference in chronograph readings between mag and std.
  
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