Franco
Member
I am a relatively experienced reloader but just starting to load 300 WSM and see some conflict in the manuals relative to primers. My Nosler guide lists WLRM as the primer used for all of the listed loads but Speer says to use CCI 200 (Large Rifle) unless the powder indicates a mag primer, in which case you use CCI 250 (Large Rifle Magnum). Very few of the powders listed in Speer indicate use of a magnum primer and most of the powders listed in both guides are pretty much the same. I normally use CCI primers and I will be loading 180 gr Nosler Accubond w/ IMR 4831. Any suggestions as to primers? Thanks in advance.