Welcome, for really shelf stable meat products jerky is not the answer. Dried beef and canned meats are more shelf stable than traditional jerky, but for the real deal pemmican would be a better solution. MRE’s do not hold up really well unless kept in perfect conditions thus when you see the inspection date on the MRE package that is under ideal conditions. Yes I have tested them under real world conditions and while still sorta eatable the color, taste, and texture was severely degraded outside of those perfect storage conditions. As processhead stated mold can also be a problem so look into potassium sorbate to inhibit that growth for long term storage and oxygen absorbers.