I have several M/ S.. the 1956 model with the big scalloped cheekpiece shoots or aims the best with irons.
If I remember ... the 1956 model in .243 like the 105 G Speer ( don't remember the powder offhand) the best .About 2" / 100 M.
My 1952 .257 R. shoots to the sights , but not as well. It is me, I cannot get behind it like I can with the 1956.
The rest are scoped.
