ORIGINAL: stubblejumper
Myrifles accuracy improved slightly, that isone reasonI recommended it. I was quite pleased with the resultsfrom such a simple change.I find itrewarding to to try something a little unconventional and get a positive result. I just wish it happened more often.[&o]
The odds of 308win accuracy increasing with a change to a magnum primer are low,occurring most commonly with ball powders.In most cases,the best accuracy is achieved with a primer that is just hot enough to provide consistent ignition of the powder.
The magnum primers will decrease the effective burn time and increase velocity.
Not according to:
http://findarticles.com/p/articles/mi_m3197/is_n8_v34/ai_7903615/pg_2/
From that link:
To begin, the main difference between a standard-force and a magnum-force primer is in the length of its burning time. A magnum-force primer burns longer than a standard force and therefore tends to increase chamber heat variously depending upon the primer's own power, the powder involved, and cartridge case size plus bullet weight.
I think what Scott is trying to explain is if you use a slow powder like 4350, magnum powders could ignite more consistently. It makes sense.
But the bottom line is, its worth a try, and if it doesn't work, ok, you tried something and learned something in the process.