Your Coleman gloves say Carhart on them :)
In response to your question about ammo choice. 22 LR is my choice for many reasons.
I own a 45 Kimber which should be enough caliber to deter any potential threat.
Some things that are needed no matter what the terrain or climate and should be in every pack include the basics such as fuel for a fire, a compass or other navigational tool, a way to purify water and a knife to assist in building a shelter. Why not find out more