David and revdocdrew: Thanks so much, I have that recent data on 16 ga, but I had no idea how that translated to 12 ga or 20 ga, if at all. I had thought that 2 1/2" shells had less pressure, but commentary and Revdoc's B&P chart sure reflects differently.
Revdocdrew: From your response I gather that as long as I stay below 650 BAR I should be using shells intended for this gun? Did you obtain the charts online, or ask for them from the company? Off hand do you know conversion factor for BAR to PSI?
On a separate note if an English gun is proofed for 1 oz and 3 tons does that translate about as follows for PSI. 3 x 2,240 lbs = 6,720 psi at (proof). 6,720 psi x .75 = 5,040 psi for use? I ask because I was recently lusting after a Watson Bros. BLE 16 ga with that proof.
Thanks again,
Chicago (Mike)
As my Marquette, MI hunting friend says "I don't know how many guns I have but I know I need one more"
