This is a survival/bug out bag question and if I understand it correctly, my wife and I both have bags, therefore, we can each carry a long gun and at least one pistol each. That said, In my bag I am taking a 20" 308 bolt gun with a folding stock and a 9mm pistol with 200 rounds each. In her pack, a 5.56/223 wylde AR SBR and another 9mm pistol and I am carrying in my hand or slung acrossed my chest a short tactical shotgun with 100 rounds (50 #6, 25 #1 buckshot, 25 slugs).
We will carry 500 rounds of 5.56 between us with 62 grain bthp. That gives us a thousand rounds total, 600 for me and 400 for her.
As to the specific guns in my safe that are making the trip? They are; a Tikka TSR-1 in 308 shooting 168 grain A max @ 2700 topped with an S&B PM II 3-12 and a Harris SBR bipod in a McCree's folding chassis, a Remington 20" V3 Tactical/Competition with an 8 plus one capacity, a custom built Wilson Combat 10.5" Pistol/SBR with a Holosun 501c, tac light and collapsible stock, and as bad as I hate to say it because I own far better options(That would hurt me to leave behind) but from a practical stand point they make the most since because if we do get in a firefight situation we would most likely be able to pick up extra mags and ammo off the bad guys, two GLOCK 19s; 2 10 rd mags for 308, 15 20-30 rd mags for AR, 4 pistol mags each.
We can hunt, fight and survive with these, as well as nuturalize any threat domestic or wild that may come our way.