In reply to:

---

What do I need to do for the pre 64 model
70 in 458? Where should it be glassed?
What QD mounts and rings would you
use? It has a Canjar(spell?) trigger that is too
light. Can they be adjusted heaver ? I have
never worked with one.

---

K80 , if the rifle is a pre 64, 458 win mag mod 70 Winchester, and there are no problems with it now,after 42 years, I doubt there will be a problem in the future! Shoot it, and enjoy!