My decade old Sako 30.06 is fitted with a Zeiss Duralyt scope which has taken some knocks, travelled to the southern hemisphere twice, and still performs like a champ.
One niggle has always been that the zoom ring on the scope is VERY stiff and the adjuster has just one small lip for finger purchase:
Whilst scanning the internet, I found that someone had designed a 3D-printable throw lever that might give cold, gloved fingers a fighting chance of making the requisite adjustment before the quarry wander off:
I am very grateful to @takbok for doing the 3D printing. The lever is perfect:
One unexpected benefit: As I am walking I can just let my hand drift back to the scope on the shouldered rifle and register what position the lever is in. If at "12 o'clock" I know I am fully zoomed out. So even before bringing the rifle onto the sticks, I know if I will need to make a change zoom for the scenario my eyes have seen ahead of me.
One niggle has always been that the zoom ring on the scope is VERY stiff and the adjuster has just one small lip for finger purchase:

Whilst scanning the internet, I found that someone had designed a 3D-printable throw lever that might give cold, gloved fingers a fighting chance of making the requisite adjustment before the quarry wander off:
I am very grateful to @takbok for doing the 3D printing. The lever is perfect:

One unexpected benefit: As I am walking I can just let my hand drift back to the scope on the shouldered rifle and register what position the lever is in. If at "12 o'clock" I know I am fully zoomed out. So even before bringing the rifle onto the sticks, I know if I will need to make a change zoom for the scenario my eyes have seen ahead of me.