Just some FYI data, I was out of powder and found some Nitro 100 NF so I took a chance and this is what I found. The data might be a bit confusing, 5 rounds shot from 2 different 5in 1911's same day, same chrono with different style schuemann barrels. All projectiles where Xtreme 230gn RN loaded to 1.24 OAL, mixed range brass with federal primers.
3.5gn AET barrel
677.6 FPS, 155.8 PF SD 6.95
3.5gn Classic barrel
708 FPS, 162.8 PF SD 9.27
3.9gn AET barrel
722 FPS, 166 PF, SD 13.61
3.9gn Classic Barrel
752 FPS, 173 PF, SD 28.24
4.3gn AET Barrel
761FPS, 175 PF, SD 6.28
4.3gn Classic Barrel
807 FPS, 185.6 PF, SD.25
My Data, your risk if you trust it.