With that low comb I would go old school low tech and use Weaver low rings and a 3X Leopold.
Did someone say this already?
Yes, I've got the old style weavers on a pair of pre-64 FWT rifles in 243 ans 270, went QD's with the 375 because I swapped the front sight out with one that would put the solid loads dead on at 50 yards, a BBW #13 300 gr solid at 2700 has to be a stone penetrator Bob, three shots went dead on and iirc a bit over an inch at 50.
Plus, I DID NOT want to file on BSA's old factory rollover rear sight on that pre-64 375.
