Laurie loaded .308 Gain ammo* with 16 LR primer types and afterwards analyzed for ordinary velocity, ES/SD, and group size. This can be the most thorough and comprehensive LR primer exam ever performed. Here's the primer styles examined: Now I do use primer flatness for a guideline for when I https://winchesterprimers46789.topbloghub.com/38206506/federal-champion-210-large-rifle-primers-things-to-know-before-you-buy