Charlie...

On the outside, the barrels look fine, no bulges or dents. Inside they look fairly pitted or corrosive? My granddad was the orig owner & used it to hunt rabbits long before the SF Giants Ballpark at Candlestick Point was built.
I'm certainly not qualified enough to make a judgement call on whether it's reliable to shoot or not. The Gunsmith at the LGS is out for awhile due to any eye injury...
The gun was checked out long ago by Micro-Sight (now defunct) in the Bay Area when they replaced the firing pins for me. The gun functions as it should & the lockup is right on the money