$500 is an excellent buy, today, for an original condition Ruger #3 - as they are somewhat collectable, and in demand.
Any Savage 219 found for less than $300 is likewise a steal, IMHO.
As Fred posted above, the early .45-70 #3's barrels were not factory D/T'd for scope mounts - either the mounts available from Ruger or Weaver/Leupold/etc.
Many Savage 219's have rimfire-type scope mount grooving, which isn't a problem on Hornets - but usually need a recoil stop installed for the .30-30, or any heftier rechamberings of the others (.25-20/.32-20)
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