I believe the pressure on the Gamebore low pressure 20ga loads is 7,657 PSI (I can no longer find my source for that)

There is at least one 1oz load at 7,700 PSI with longshot powder that can be found on the Hodgdon site.

I believe in general you should stick with 7/8 loads for most low pressure 20ga loads.

PS any 2 3/4 20ga data is good for 2 1/2 if it fits and most 7/8 loads do

Last edited by old colonel; 03/18/16 10:09 PM.
Michael Dittamo
Topeka, KS