I' ve got my 7mm mag loaded for long ranges shots, by that I mean 300 to 400 yards. I hunt a powerline alot and those long shots are fairly common. I agree with what everyone says about the heavier partitions for the ranges your talking about, but, for my gun the best load I' ve found is H4831 at 68.5 grains (that' s a max load in my gun) 140 grain nosler ballistic tip (I' m not a ballistic tip fan but it' s great for accuracy) and federal large rifle primers. Again, I practice the 400 yard shots and have confidence in a no wind situation. I don' t even think about it if the wind is blowing.