Mike Rowe makes a valid point. Some light loads do in fact create breech pressure levels that can be excessive for older double guns. My limited research has shown that Winchester AA Xtra-Lite 28g, 2 3/4 dram equiv. target loads produce a moderate breech pressure. Would be nice if ammunition manufacturers could state the pressure levels of their products, especially for users of older double guns.
About 15 years ago I called Winchester and asked about the pressure of these shells. Answer was 8,500 psi.
