Machining a tensioned barrel for the Epic 2

Hi guys got a video here today on turning up a new barrel for the Epic 2, I am replacing the unchoked CZ barrel for a choked HW or Weihrauch barrel.

My ebay:

https://www.ebay.co.uk/usr/sub12airgunners

Sekhmet gauges: 10% off
Code: "SUB12"

https://www.sekhmetonline.com/?ref=SUB12

Merchandise link:

https://personalised.clothing/sub12airgunners