As usual, I agree fully with
@ActionBob and
@Bullthrower338. I now have a wrench to throw into Bob's gears about the M70 in .470 Capstick.
About a month ago I was going through GunBroker looking for a RSM or M70 that I could not do without. There were two M70 Big 5 .470 Capsticks for sale by the same owner. Both rifles were listed for considerably less than one might expect to pay. The owner gave a detailed explanation below the listing. To briefly paraphrase what he stated is as follow:
When Winchester made the Capstick rifles, the bores were made unintentionally slightly larger than Capstick rounds bullets. Even though the mistake was only about 4 or 5 hundredths, (?), it greatly affected accuracy. He stated that the only way to fix this was to either have bullets custom made for the individual rifle, or to have a new barrel made with the correct bore. He commented that if you were interested in acquiring the rifle for collector purposes only, this is obviously not a concern, but as a hunting rifle, you would have additional cost one way or the other after buying it.
This is the first time I had heard of such a situation, but then again I have never known anyone that owned a M70 Big Five in .470 Capstick caliber.
Is this news to you also, or just old news that I have missed?