i will be hunting with my son in wyoming this year and it will be the first time for both of us. i was thinking of taking a 270 for me and a 243 for him and bringing a 308 as a back up just in case. we will be hunting with a guide who has offered to give my son a cow elk for only the price of the tag. he can handle a 7wsm but is very adept with the 308. will the first rifles be good choices for lopes and what do you think about the 308 for elk. we will be there for a week and hunting varmints and birds so i will need to save space as i figure we will probablly be taking 6 guns plus gear