CB shorts are good cat medicine from a Win 67 or 69. Quiet and very accurate.
I've killed a few cats with the RWS conical version in my younger days. I shot a cat at approximately 50 yds one time, my longest kill, and it dropped in its track. I still can't believe that kill. I used to buy ammo at the corner drug store when I was about 12 years old, the good ole days.
