Danger comes when you hit peak pressure that is higher than SAAMI max. Most powders hit peak pressure early on, and then quickly drop down from there as the bullet travels the length of the barrel. RL17 holds that peak pressure longer within the bore as the bullet travels down, meaning that you can load to a lower peak pressure and still maintain high velocities because of the greater area under the pressure curve compared to conventional powders. I would love to see pressure data with regards to velocities achieved with RL17 at the same peak pressure other powders are loaded to.