Air rifle for long term SHTF small game hunting situ.

I bought a cheap Black ops .177 BB/Pellet gun at Walmart on the drive out camping. Nothing special but it passed the time plinking cans. About 1100 FPS with 10 pumps. I can shoot a dime size group at 40 feet with 3 pumps. Pellets are way more accurate. Pellet scopes are boresighted at like 30 yds but you can zero this to any range. UK has some awesome air gun sites, I like the youtuber that uses an IR scope and shoots rats with a $1700 gas pellet gun that takes a cylinder (but he can pump it with a hand pump). Can put a rats eye out at 10M. I believe a silencer on an air rifle is still legal. IMGP2818.JPG