The ctgs noted, especially the small bores, are 46,000 (.405Win) to 53,000psi (.303) rounds. Even the 9.3x74 is a 49,000PSI round. The NE rounds run 41,000 to about 44,000psi. Maybe the question should be, are these suitable for putting on a shotgun action?

Are shotgun actions that were designed for 12,000psi rounds suitable for these pressures?

I know it's been done, but should it?