[Big Friend Ten (BFT)]

Originally Posted by Greg Baehman

Here is a chart, verifying what Mark stated, put out by Dupont showing pressure peaks... in the first 1"-1 1/2" of the breech and then drops quickly as the load moves down the barrel. Many of us are shooting loads in our Parkers with pressures considerably lower than the loads that were tested by Dupont for this chart. I wonder if our nitro loads that develop ~4000-7000 psi behave similarly?

Greg,

Yes they do. I have a peizo-electric pressure pressure gauge and my 6000 PSI loads have similar but reduced pressure curves as those measured by Dupont.

Mark