Rookie question -- going on first time hunting safari to Limpopo in June, with my 16 year old son. Taking 300 Win Mag and 308. Planning to take 60 rounds of ammo for each. I assume ammo needs to be separate from rifles in checked luggage? Does it need to be in a locked case, and can both calibers go in one ammo case? Any suggestions as to best cases, etc.? To extent it matters, will be flying Lufthansa through Frankfurt to Joberg. Thanks!