I thought about a Desert Eagle ..... but the control and the penetration .... my ears hurt thinking about the last time
.
the .50 cal action express from desert eagle is surprisingly LOW in recoil...and,
the added attraction is that if you run out of ammo you can always beat the intruder to death with a few swift strokes of the heavy barrel.
I thought about this gun in .44 magnum for bear protection, but even then it's too darn bulky and will cause hip displacement when carried all day.....!!!