I have had a 270 Win Ruger 77 RS since mid seventies. I bedded the action and barrel. Stripped and resealed the wood. Put in a Timney trigger. Put Weaver Pivot Mounts in so can very quickly switch from scope to iron and back and yes it hold zero between switches. It also holds zero for ever in all conditions. I have a fixed 6 Leupy on it. I have killed a lot of things from red squirrels to elk with it using mostly Partitions with one shot kills.
Yes I have multiple calibers in that performance range, but......
I have plans to have it buried with me.
"The significant problems we face cannot be solved at the same level of thinking we were at when we created them." Albert Einstein
At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".
