It is normally not suggested to interchange magnum primers with common primers with no very careful thought in the load requirements. Magnum primers offer a hotter and for a longer time-length flame to ignite powder in large or closely loaded cartridges much more correctly. Extra/oversized freight rates however implement. Provide https://cci-primers13456.blogs100.com/31512825/the-greatest-guide-to-cci-n-34-primers