"But as long as the pressure does not exceed 11,500 psi for a 12 bore, they're good to go. But if they say the velocity is 1330 fps, for example, that's going to be pretty close."

Larry with the different loads out there now, you can no longer state what you wrote above. As you can see from this recipe from the Alliant site, this is pretty close to your 1330 fps and nowhere close to SAMMI.

This load is for 3/4 oz. shot using 12 gauge Remington Gun Club or Nitro hull.

16.0 Extra-Lite Rem. 209P CB0175-12 1310 7300

I use a load similar to this using Titewad instead, the fps is a little slower.

David