Midway has a treasure trove of rifle side mounting plates upon which one
can then add the correct over the barrel Weaver scope mounts.
For my Reising M65 I just found the correct side plate that fits the already
drilled mounting holes that were there when I purchased the M65
from a former Marine who kept his mounts/scope and
replaced it with Lyman sights.
My just acquired new, Optics Planet, 4 x 32 scope with night lit red cross hairs
are just the ticket for HAREs at dusk.
He also gave me a NOS M65 stock that I have wrapped up over these many years
after I polished it up with 0000 Steel wool/min wax and Mother's Wax
to bring out the amazing wood. The original stock got the same treatment
and it puts the plastic-elastic stocks on rifles today to shame.