im curious whats the difference between a standard 30-06 shell and a 30-06 springfield? i have a remington 7400 30-06 and it shoots the 30-06 springfield and i got to thinking while buying some new ammo today and im curious is there even a difference? if not whay do they have 2 different names? i figured this would be the best forum for this question and hopefully ya`ll can fill me in. thanks,sean