I would use loads found in the "cowboy action" sections of most free, factory manuals. While the "conventional wisdom" is to never substitute components, you're dealing with low pressure to begin with, not borderline maximum loads. You'll have to use shorter wads of course, but I don't think loads in the pressure range you want will be drastically increased by a 1/4" shorter shell. JMO, as always.

> Jim Legg <