Loads for the .460 Rowland

Has anyone done any reloading for the .460 Rowland? I've had some success with AA#7 18.0 gr, using Hornady's 200 gr. XTP. This gave me 1,425 fps from my S&W 1911 with the Rowland conversion kit. I got good accuracy with 3" groups at 50 yds with iron sights, but the bullet performance wasn't very good on a 125 lb wild pig at 50 yards. It blew up on the rib with none of the fragments having enough power to even mark the opposite side of the rib cage. I did kill the pig.

As anyone used any of the other 200 gr HP? I'd like to hear about the experiences.

:violin:

If you don't know anything about this conversion, here is the site with info:
http://www.clarkcustomguns.com/rowland.htm