Send the wife out to shoo him away.
Yes! That hide and fur is thick. Hide is like a pig.I will defer to those wiser that I, but after considerable research I offer the following:
Handgun: 45 long colt using Buffalo Bore 405 solids as a minimum. Only use this load in Rugers and other heavy built revolvers. DO NOT use this round in Taurus Judges according to Taurus. Obviously 44 mag and > is also good providing one uses solids v/s hollow points. I retired a 357 mag for bear defense using Buffalo bore solids after my experience recounted below.
Shotguns:
Any solid 3"+ slug/12 gauge for medium range. I'd use slugs v/s Sabots since you loose energy using Sabots due to the smaller slug.
Riffles:
You mileage may vary but a 7mm mag blowing thru both shoulders at 45 yards and a right to left front shot that only served to pierrette the bear, and a perfectly placed 180 gn 300 Win mag shot placed broadside just aft of the right shoulder at the same range did not drop a 2.5 year old 500 lb. bear in his tracks. He was dead but did not know it. He bellowed like I have never heard before while attempting to crawl back up a mountain in WMD. A 300 Win Mag to the base of his skull finally planted him. Next time, I'm using a 45/70 w/ Buffalo bore solids.
Black Bears hides are tough! That ELX 300 Win mag was recovered against the left clavicle and did not go thru the bear at 45 yards! Think sharkskin over 2 layers of hairy denim and you have bear hide v/s a t-shirt for deer hide. Best have a sharpening stone to skin the beast because you will have to re-sharpen after every 2-4 linear ft of skin.
Finally, if you do the black powder deer season in WMD, you might want to consider carrying an old Colt BP revolver that is not only legal, but could come in handy for a followup shot in addition to bear insurance.
Yes! That hide and fur is thick. Hide is like a pig.
I took my 175 pound bear on Savage Mt state land with my 223. Used a remington 55 grain soft point bullet. Placed the bullet just above the eyes at about 50 yards. The bear fell in his tracks. The hardest part of gutting was getting through the skin. Once this was done the guts came out much easier than a deer.
I can see in MD after you fire one off at it, the prosecutor's first question is why did you take the time to plan placing a firearm, but not contact DNR for assistance? The last thing you want to do is shoot at it in a residential area before taking all other precautions first. This is MD, not WV which is a bit more gun friendly.
At the station this morning! At least he didn't break into any cars this time!
https://www.blueridgelife.com/2018/08/23/wintergreen-black-bear-wanders-into-wfd-firehouse/