Upon taking your advice, I decided to go ahead and call them. You are right in that they were very kind and in just a few moments, they gave me the pressure info I needed.

Here is the info on the Kent TM Pheasant and Game loads, C122UGNT36-5 *12 2 3/4" MAX 1330 1 1/4 oz. 5's produce 9100 psi.

The info on the Kent TM load for waterfowl, C122NT36-3,5 12 2 3/4" MAX 1400 1 1/4 oz. 5's produce 9900 psi.

In this info where you see MAX that is Dram, followed by velocity.