Actually, if you're concerned about recoil then the 30-06 is a better caliber to start with if you're an in-experienced shooter unless you think you can absolutely handle the recoil. The 300 Winchester Mag does have a little more kick then the 7mm Rem Mag but the 7mm Rem Mag is no sissy either when loaded with hot loads. But if you load a 7mm Rem Mag with regular old soft points then it kicks just about the same as a 30-06. If you get the big 7 and somewhat in-experienced then I strongly suggest staying away from the accubonds, partitions, balistic tips and such and start out shooting the soft points so you don't develope a flinch because it will kick, but everybody has different tollernces.

Good luck