magnum primers?

B17-P51

January 07, 2006 08:06

I, by inheritance, acquired -A WHOLE LOT- of small rifle magnum primers. What, if any, are consequences of using these in place of a regular primer in a low end plinking load in a .223 Mini 14? I do not believe this would be bad. I will probably use 2230C data powder and a 55 gr FMJ. This project is to use up odds and ends of stuff and have fun!

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  mrbruce

  January 07, 2006 08:32

  As long as you start a bit on the low side and work the load up, the Small Rifle magnum Primers will do just fine for you.

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  nononsense

  January 07, 2006 10:18

  B17-P51,
  
  The level of activity of primers usually incorporates the term 'brisance' which is a reference to how much energy is contained in and can be released by the primer.
  
  Magnum primers have a higher brisance than standard primers.
  
  "...Recall earlier we said there are "standard" and "magnum" primers? A magnum primer has more mixture in the wafer of lead-styphnate priming compound. Magnum primers are not required for 99% of reloading. Loading manuals will specify what loads require magnum primers. Usually, magnum primers are used with slow burning ball powders in very large capacity cases. The powders we use, and the small & medium capacity cases we tend to work with in Mil-Surp reloading don't require the use of magnum primers."
  http://www.surplusrifle.com/reviews/primers/index.asp
  
  The 2230C Data has been a bit slow in my .223 loads so a SRM primer may be just about right. Remember to start lower and work up slowly.
  
  Here is a chart that compares primers:
  
  http://www.handloads.com/misc/primers.asp
  
  Best.

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