I’ve done this for years and never ruptured a bottle, I set the regulator to 60psi. I’d like a metal bottle too but haven’t found one - I presume spraying some

I’ve done this for years and never ruptured a bottle, I set the regulator to 60psi. I’d like a metal bottle too but haven’t found one - I presume spraying some co2 into it would be enough to get the plain air out since you obviously can’t squeeze the air out.