12 gauge shotgun, 00 buck Shot, you only need to aim close. Most people will run scared as soon as you pump it the first time.
I second the motion. Excellent choice for her.
All...for shotguns just for home protection what barrel length is recommended?
A 12 gauge shotgun and a .308 caliber rifle is too much gun for a mid 60’s woman. Something more in the order of an AR-15 with a 16” barrel and collapsing stock or an M1 carbine would be much better.
Both are small and light with low recoil and excellent choices.