I have used many . And I think they should be used when shoot a case with over 50 GR charge And or old weather .On what loads are you using the large rifle magnum primers ?
I've never used them but found a good deal on a case this morning.
Ok. Will keep that in mind. We may get a cold day here in TX this year. One never knows. ThanksI have used many . And I think they should be used when shoot a case with over 50 GR charge And or old weather .
Larry
What does Speer know about reloading we don't . Good answer . Smile LarryI use magnum primers with H380 and other ball powders. seems to benefit accuracy and consistency. 22-250, 243,, etc. Speer manuals use magnum primers on all ball powders.
I use magnum primers with H380 and other ball powders. seems to benefit accuracy and consistency. 22-250, 243,, etc. Speer manuals use magnum primers on all ball powders.
Thanks for the reply. The primers I found are the CCI No. 250.
Meaning I do not think competitive shooters shoot matches with a foot of snow on the ground and they are shivering with cold.
And Rudyard Kipling said that only "mad dogs and Englishmen go out in the noonday sun". I guess Kipling stayed indoors by the fire in cold weather.![]()
In my early days of handloading, I always had the current Speer manual and used it extensively. Initially, I always followed the ball powder / magnum primer advice, but then as I got more experience and a chronograph, I found it a very poor 'rule'. On one occasion, I not only got poor results with magnum primers in a H. BL-C(2) loading, but wrecked some expensive Norma cases with pressure spikes that simply shouldn't have been there at the low charge levels being employed. I eventually decided that magnum primers simply aren't needed for many ball powders and have used standard grades at least initially for a long time now usually with good results.
However .... that's for temperate conditions match use. Take a rifle out into a sub-Arctic winter hunting environment and it's a very different matter. Speer makes bullets primarily for hunters and its loads manual reflects that. In many North American winter conditions, a magnum primer will be useful even for easily ignited extruded powders given serious temperature induced MV drop-offs which can adversely affect the shooter's sight-settings and hold-overs resulting in low shots at longer ranges.