Sarge,
Pick up a Hogden Reloading magazine, there are a couple of 2" loadings in the front of the 12 ga. section. Also, contact Ballistic Products, 800.273.5623, they have data and components. Ballistic products also has a handbook, "Care and Feeding of Fine Doubles" but alas, it is out of print as of last week. An interesting note on 2", typically they are loaded to higher pressure than 2 1/2" and I for one have always wondered why? I'm loading for a 2 1/2", and because I roll crimp, I'd like to trim back to 2 1/4" and then 2" to reuse hulls, but the 2" loads tend to be, if memory serves, 8-10,000 psi and I'm staying under 7000 psi for my 100. yr old Webley & Scott.
Sarge, if you are interested in my humble opinions and reasonable amount of loading experience, email me @ steve@coloradoaircargo.com.
Good luck,
Steve