You are correct Ford, but I have not seen another reference for the 1893 addition for semi-smokeless proof for the scattergun voluntary proof. Not sure the pressure would approach 4k atm but the stamp type is the same. Proof load can be 2 or 3 times the service load. So 2 times service/duty load = proof load depending on pass but the multiplier is not linear across the load. Say the powder charge will be tripled while the shot load will be double, etc.
Ford, thanks for reminding me on the event. Um, are you going to make the effort?
Kind Regards,
Raimey
rse
