This
https://m.youtube.com/watch?v=z0TlctbLT3w
Type: Posts; User: Gibo
This
https://m.youtube.com/watch?v=z0TlctbLT3w
Do you size and champh etc before or after? You mentioned preping first.
Cheers. The time would be dictated by the anount of heat put out by the tourch. I have a pissy little one. May have a jam myself. Got heaps of old brass to practise on first. Thanks for the post
What made you do 7 seconds? Was that when the colour looked right?