Has anybody systemically examined the accuracy of various powder + primer combinations, specifically for any of the following powders:
-RL19
-Viht N550
-H4350
-IMR4350
-RL15
In the Dec 2008 issue of Handloader Magazine, one of the authors featured states that different powders will have definite primer preferences. For example, the most accurate primer for Varget was CCI 250 primers (in a .308). He also suggested that when developing accuracy loads, one should start with first finding the best primer for the powder selected.
I am hoping to find the most accurate load for my .300 WSM using the above-listed powders to start of with. So my first step is to find best primer(s) for each powder.
I looked at it many years ago, but to generate the most certain uniformity I could extract by eliminating rifle and shooter variance, I used a 30 pound open class bench rifle in .308. I found what bench rest shooters already knew, that primers both influence accuracy and sighting.
JW
