Thanks for the feedback everyone.
I've thought a lot about it recently and decided to keep it...rogue rifle or not! I'll do some more experimenting with different loads/powders/bullets and see what happens. It is a sentimental/nostalgic rifle to me but I also want it to serve a purpose in my collection. A Remington 742 does a lot of things well, nothing great so I'll focus on that. Thanks again!