Sorry if you feel like that Mal, but as I say fairly often on the forum, the place I learned about straight talking and no mincing of words was in Australia! And to be fair, I did apologise even before I continued. You're right, someone did ask the Q. so I answered as best, truthfully and above all, as honestly as I could. That said, it's not all '....in my day.....' although 'in my day.....' second best was never good enough. I actually SAY that in my day, in the 60's, we did do all this stuff. And to be honest, it was a load of crap compared to currrent thinking. The CURRENT way is to just VIEW the barrel for straightness (better than any 'GAUGE, testing straightness of bore believe me.....), see that the calibrated bore gauge runs and accuracy test it on our test range. There's nothing 'in my day.....' about that. It's just good plain bleedin obvious to me!
And JUST to prove my point, I'll ask you how we do our current megga accurate sniper rifles (both sorts.....) Yep, you got it in one. View the barrels on the rollers, dry the bore, run the gauge through ensuring that it drops on its own weight and then accuracy test. Passes all of that and he gets it back!
Peter Laidler
Pete the Pom.
Australian
Army 1967-70