Ruger Target Model by the looks of it. They made them in stainless and blued with the same laminated stock.

20" barrel with a sort of spiral design, flat space on top that says Ruger Hammer Forged - correct?

Asking prices are around $500 to $600 these days.

Here are two blued ones:

https://www.gunbroker.com/item/1031383070

https://www.gunbroker.com/item/1017598377

Stainless in pepper laminate: https://www.gunbroker.com/item/1030339038

Gunnery, gunnery, gunnery.
Hit the target, all else is twaddle!