My preferred primer for all small rifle applications are the Remington 7 1/2. I have used other primers, but I keep coming back to the Remington. The 7 1/2 is considered a bench rest primer, but it has a thick cup to enable it to stand up to high pressures and I have found it to cleanly ignite every powder I have used it with, including WW296 (H110's twin). If you are shooting a revolver, the thick cup may cause misfires due to light hammer strikes, but I have not had a problem with them in T/C Contenders, Handis and the various bolt guns I have. Good Luck and Good Shooting