So, muddled meanderings in the outhouse...looking at the 460 Rowland kit for a 1911, it seems heavier springs, different brass, and a comped barrel are all it takes.
Yes, I know the 460 brass is longer, but OAL is the same as the 45, so you just have more boolet in the brass. Heavier springs to handle the recoil, and a comped barrel to help with recoil.
The 30 Super Carry thread tickled this fancy. I am not looking at doing it, just wondering what I am missing in the conversion.
My 'know just enough to get in trouble' mind says the 460 is just increasing pressure in the same space to achieve faster velocity.