I would try them both if you have the luxury. I have a 270 Win that shoots great with mag primers and Magpro in heavier bullets. Couldn't get that rifle to shoot good groups with 150's in any factory or handloaded ammo. ( 1 1/2 - 3 inch). Mag primers made 5/8 - 1 inch groups normal. Same powder, RL22, and 200 grain Accubonds in a Tikka 30-06 shot 1/2 - 3/4 groups with standards?
They all like what they like.
Good luck.
