My daughter has a Ruger rifle that I got her when she was about 10 years old.
It is the Ruger M77 compact in a 7-08. She's had the rifle 12-13 years now. She's trying to get accurate at longer ranges, but the trigger is so stiff it's difficult.

I am considering buying a Timney trigger for it.
I replaced one on a Savage last year and it was very simple.

Question. Is it a really easy drop in on Rugers, or will there be some shaving and whittling to do?

I've seen some reviews saying they had to use a dremel on some parts.