My Lyman manual says that you should only crimp grooved bullets (cannelure), and that crimping is necessary for autoloading and lever guns, as well as those with heavy recoil.
The instructions with my die set say that 'bullets do not need a crimp groove as the lee factory crimp die will form one while crimping'.
Question #1: Does a 300 Win mag less than max loads generate enough recoil to need crimping? I am using a bolt action rifle, and will have rounds in a magazine in hunting scenarios.
Question #2: If it is good practice to crimp these rounds, should I crimp a non-grooved bullet? The manual suggests I don't, but the die instructions say it's okay to crimp.
I am just getting into reloading and am still reading the manuals before I begin loading any ammo. My first loads will be 32 special and 300 win mag. After a lot of research on this forum and others, I decided to go with the Lyman T-Mag Turret press kit, about $325 in Cabelas. I will be using both Lee and RCBS die sets.