I would like to know as well, I moved a ZA-5 2-10 from a Ruger #1 in 300 H&H over to a lightweight M-70 Winchester in 300 RUM, so far so good but, would like to hear positive reports on long term reliability.
Most may recommend you spend that 300 bucks on a 3-9 Conquest.
Gunner
A lightweight .300 RUM will give it a good "shake test" for sure.
If it survives that, it's probably OK.
DF
