I would just use a different rifle for squirrel hunting than I would deer hunting. I am usually after one or the other, drastically different game generally calls for a different rifle.
That's right. Squirrels and deer are just too far apart to use the same rifle on both. If deer season is open I will be carrying my deer rifle, a NEF Handi Rifle in .30-06. Otherwise for just walking in the woods, I will be carrying my Marlin Golden 39A Mountie with peep sights. Its a lot handier without a scope on it. If I am going out specifically to squirrel hunt, I will take my scoped 10-22.
(Luke 11:21 KJV) When a strong man armed keepeth his palace, his goods are in peace:
(Luke 22:36 KJV) Then said he unto them, But now, he that hath a purse, let him take it, and likewise his scrip: and he that hath no sword, let him sell his garment, and buy one.