Pete, Miller,
Thanks. Yes, now I recall this chart. Yes, the "area under the curve" or total energy has to equate if the same velocity is achieved for same wt payloads. That 10" point on the chart is probably more or less close to a gas port on a gas gun. Looks like D. Oval is about 1500 psi higher than A. MX at the 4" point.
One thing I did find for myself, is that all promo loads don't necessarily have SAAMI max pressures. I tested several loads over two gauges and never got a max pressure or even within 10% of max. The pressure rig was verified with a known pressure load.
Last edited by Chuck H; 09/24/07 02:45 PM.
