How fast do you play?
If you have group of 5 (4 players plus GM) then you should have at least 40 rolls or more. Most likely in range on 100 before you run out of gear. If you roleplay each action and their outcome the game should last at least couple of hours.
Viewing post in Come home safe jam comments
You know what? Looking at it again and factoring in the r.p., you are right. I was only considering the die rolling aspect, plus my inability to roll high numbers, as shown by my DnD sessions. So frustrating.
Assuming these are d6 and not d8 or d10. I would use d10 'cause I'm a hardcore survivalist who knows how to use a single tool to do multiple things, haha!