I'm building a 1911/2011 or similar soon to compliment my Glocks. My goal is to get the 65gr Xtreme Defender .355in bullet over 2200fps from a 4.25in barrel (or close to that length). I need to pick a cartridge to do that with. So far from reloading for my own Glocks, getting info online, and playing around with Quickload, it seems like I can pick one of the following (following loads are max or beyond book max, do not load these unless you work up, check pressure, etc): 1. 9x25 Dillon. Current load is 18gr VV 3n38 at 1.273in COAL. From a 4.5in barrel it yields 2350fps chrono'd. To get this to feed properly in other platforms COAL would need to be reduced to 1.25in. 2. 357 Sig. A 14gr Alliant Power Pistol load in 5in barrel produces 2300fps at 1.18in COAL, chrono'd. Supposedly very hard to get it to feed reliably in the 1911 or 2011. 3. 9x23win. No load data, but quickload thinks it would yield around 2200fps from a 4.25in barrel with 12.3gr of Alliant Power Pistol. This feeds very well as long as they are limited to 1.25in COAL or less. 4. 38 Super & Super Comp & similar. No load data, but quickload thinks it be almost identical to 9x23win (which makes sense) when loaded to similar pressures (which supposedly a fully supported chamber will handle just fine). 5. 9mm Major in Shel Shock cases. Loaded long with Alliant Power Pistol they are just shy of the 2200fps goal, but close enough that it may be achievable. I'm set up to load 9x25, 357 Sig, and 9mm already, but I don't mind adding 9x23 or 38 Super Comp to the collection. So the question is: if you wanted to get a 65gr bullet going 2200fps+ out of a 4.25-4.5in barrelled 1911/2011, which cartridge would you choose to do it and why?