PracticallySane wrote: ↑

Sun Dec 27, 2020 4:37 pm

This should help

https://eicac.co.uk/Pipe-Bursting-Pressure-Calculator

With your given parameters it looks like a burst pressure of roughly 4438psi.

tks, it looks it is rated at 2393 psi .......as it is welded.....

It is logical what it says. A 1/4 "steel pellet weighs almost exactly 1 gram. The mass of the ammunition should influence its rotational speed as it exits the barrel intentionally or unintentionally. The heavier, the more resistance to rotating at high speed. Unfortunately, I only have steel bb's t...