optics help for custom 6gt

[mdram]

so im searching for an optic.
rifle will be a 6gt- cdg, brux, foundation
use will be paper punching and steel
distance. 500 normally, 1k when i get the chance.
would prefer at least a 34mm tube
i am looking at
10mile 5-50
sightron sviii 5-40
razer gen3 6-36
march 10-60
march 8-80
im getting old, higher mag looks interesting and yes, i will be hand loading