I look forward to the results of your test.

I have been playing with a 460 Rowland barrel I installed on my 1911 about a year ago. Initial tests with 230 grain lead bullets gave a speed of 1335 fps. from the 5" barrel. Compare this to 1380 fps. for a 240 grain lead bullet from my 7.5" Blackhawk. 185 grain JHP's clocked in at 1525 fps. The Rowland has half the recoil of the Ruger Blackhawk. I recently acquired some 230 grain XTP's I will be trying as soon as weather permits.