You don’t. Unless you get a T3 Arctic.
The reality is given what is available today with a T3, UM rings, etc- the scope is still the most fragile piece of equipment on the rifle. I beat the shit out of my scopes/rifles in practice, yet protect them as much as realistically possible on a hunt.
While failures as above are rare- if I took that as fact that the 3-9x hard broke, that’s the first out of well over 100 that I know of that has done so- with very high round counts and abusive use. One (maybe two) that I am aware of had a reticle rotate (still zeroed and still dialed correctly. So let’s call it 1/100 hard failure.
Now that sucks for the one, however the only other scopes that have as low of a failure rate in use that have seen with that amount of numbers and use is NF NXS’s and NX8 1-8’s, and SWFA fixed powers (I’ve seen one the turret broke off and one that leaked).
Now even with those numbers and reliability/durability record, and astronomical odds that one will fail on a sheep hunt…. It doesn’t help when you are the one it failed on the sheep hunt.
The answer is something like the T3x Arctic iron sight setup, or the sights one the Sako TRG 22/42, and/or the M24. But no one is making anything for centerfire modern bolt actions like that. Yet.