I have been handloading for a while now and I always use the primers that are listed in the reload data.
What I am wondering about is:
What is the difference between the different primers? Is there a difference (other than manufacturer) in Large Magnum Rifle Primers and Large Rifle Magnum Primers? The same question goes for Large Magnum Pistol primers and Large Rifle primers.
What is the main difference? Do some burn hotter, faster or more efficiently? What would the benfit be of using one over another?
I reload for a S&W 500 and a 300RUM.