center punch crown of barrel for accuracy ???

[lone ranger]

LOL...well I guess punching the crown was actually done.....and It Did work.
I have to wonder what other "obscure" methods were used on guns, that in fact worked,...but have been lost or forgotten.
The information was probably passed around from gun smith to others but Not written down in any lasting way. Lots can happen in 100 years.
You can find all sorts of information on the internet ,,,but it comes from from published books & magazines. The old guys and their knowledge never made it to the computer age, and what they knew is now lost forever. ...... unless you happen to bump into somebody nearly Century old.

 

[trevj]

Every factory that made rifle barrels bent them as needed to straighten them.

The Cooey barrels that I have dissected, have seldom been anywhere near perfectly centered bores. Matters not a whit at the end, as they usually shot pretty well anyway.

Feinwerkbau actually made a target air pistol that had a barrel which did a complete wrap around the air cylinder, like a plane doing a barrel roll (pun not intended) to prove that it really doesn't matter so much what it does until the last few mm of the barrel. It shot as well as their guns do.

I am certain that guys did all manner of things to barrels that were not shooting to point of aim. Many, if not all, of which, would not be found in the repertoire of a modern professional smith these days.

Really, remember that guys thought they had pretty much hit the jackpot, if they could get a rifle to group an inch at 100 yards. That was after spending time and money on it. Now folks thing a half MOA is to be expected...

 

[AP]

I think I would want to hear that it worked on one of your rifles, before I tried so on one of mine. Just too easy to use a Brownells hand tool to re-cut the muzzle square, then beveled; bent barrels have been straightened by barrel makers and "smiths" for 100 years or more - not so sure what the centre punch idea would be a solution for?? Note the above quote - "then file the crown..." .

It seems unlikely but it is not unknown for a factory crown 'NOT' to be perdendicular to the bore. ... the Brownell tool can correct this if used carefully... gently and with a touch of high pressure grease on the pilot.