I believe so, in that I have the calcs for the origional design criteria and breach thrust. The conversion develops less thrust than the origional loading. The conversion is proofed to 3500 bar 52,000 psi or thereabouts. The max loading for the cartridge is 28,000 psi or so. Thus we have a test 185% of max loading.
The 4140 that the barrels are made of has a hoop pressure yeild of around 150,000 psi
They don't build bridges with that sort of margin. If it came to litigation I would consider that I had an adaquate defence.
But I live in England, I wouldent fancy the argument in a California court room :-)

Regards