How long can a load be in a gun? [/b]
=============================================
Sometimes only the morning hunt! It all depends on air moisture where you're hunting. Pay attention to the humidity reports in your local area & obviously any type of rain. I now shoot my load every night regardless. If the air is full of dew/fog/rain, I'll shoot it twice a day. Animals like deer generally are not disturbed by a single shot in the distance. They are more apt to run a mile after seeing/smelling you. Also... MLs in general shoot more accurately on a fouled bore than a clean one. A light swab with soluble gun oil like Ballistol or Birchwood-Casey Sheath between shots - then both sides of a dry patch in an already-fouled bore every night is all you need to remain accurate & keep the bore moisture-resistant -- plus have more fun actually shooting the rifle while out hunting for the week.
In most cases involving ML hunters, these frontstuffers are more fun & create additional conversations at the kitchen table when you shoot them everyday...lol