I picked up 400 primers today, 200 CCI 250's and 200 Remington No. 91/2's. I know that these can be used with my 22-250. Most book loads for Varget call for standard large rifle primers. Any particular pitfalls with using magnum primers with varget? If so, it's easy enough for me to buy another lb of powder that does have book loads using lg mag primers and I could just hold onto the Varget for safekeeping. Thoughts?