I just completed my hand loads for my Q5. I tested a number of different powders, Titegroup, 231, unique, power pistol, and wsf. I was going for the powder with the most consistent FPS. I tested 135 grain plated flat nose and 147 grain plate round nose bullets with Winchester primers my length is 1.145. I found that 231 was the most constant with 135 grain ammo. With 147 grain bullets titegroup was the most consistent. The most inconsistent powder was WSF by far. I settled on the titegroup because the 147s felt like they had less recoil. I'm shooting IDPA and need to make a 125 power factor. With 2.9 grains of titegroup my FPS was 875 at 75 degrees and 900 at 95 degres. I'm happy with the accuracy of the load although after reading this forum a may shorten the length a bit. I did have one double feed after about 800 rounds, my guess is It was a fluke.