What is the equivalent primer in another brand to the Federal Gold Medal Match primer? (210M) This would be the large rifle, non-magnum primer. I had the great fortune to listen to a gentleman when beginning to reload and he told me to use these primers and to purchase around 5000. I thought he was crazy as I had never pulled the trigger on more than 200 rifle cartridges in my life. Well, 3 years later, I have a bad case of ballistic crack addiction now and thought it might be time to begin to search for more primers. None seem to be available. Any help in determining a comparable, and available, brand would be appreciated.