I put a bit more than that in a few years back, left it to settle the fluid in the sidewalls and started on the other one. Heard a massive bang, fluid all over the windows and the tyre now two foot away from the wheel 😯 😆
Mine was quite a bit above 30psi when it popped off- big flatspot on the rim seemed to be the cause. Impressive stuff- ears ringing, felt like I’d been slapped around the face, and it knocked the wheel out of its dish. Glad I wasn’t holding onto it when it went off!