I’ve got a 2X - 7X Vortex Crossfire on the CZ 452 Trainer and Leupold 4X on the custom SS Ruger 10/22 with the black synthetic stock and a trigger job. The CZ has a lighter spring for the trigger. Also has Millet engraved rings as do the the other two. The other Ruger is a SS Walmart special Mannilicher green laminate stock. It has a Simmons 44Mag 3 -9 X on it as it was all I could find on my budget in silver when I got the rifle many decades ago.