Acquired some Cabela's loaded ammo. (44 Mag) Loads were so light they were boring. Pulled them, they had a 10.5 gr charge of unknown powder behind a Hornady 240 gr XTP. MV of 1,050 FPS. Any how I want to replace the powder with stiff load of H110. But I don't know if Cabelas used magnum primers in original charge.Does H110 require a magnum primer ?