I posted a while back in a thread that I didn't think pressure increase was linear. Another poster said it was. I contend that at somepoint the amount of increase in psi per fps rises sharply at a couple of points along the pressure line. Which why we not only have max loads but minimum loads too. There's that "window" where pressure can be reliably predicted to increase along a certain slope, but outside that window that slope may increase or decrease dramaticly. IOW, if I'm loading for my .280 with a given set of components, within that window the slope might go from 18psi per fps to 20psi per fps, but then somewhere at the top end that slope is going to drasticly increase to like 25 or 30psi per fps in just a few grains of powder and/or fps increase.
Is that a fair statement of what those that have answered are saying?
Last edited by .280Rem; 12/14/07.
