Ok, fairly new to reloading, and trying to build a good round for my G23 for competition (w/ Storm Lake Bbl). Problem is that I am getting really big SD numbers, and the velocities are all over the board, i.e. no consistency. This is the case regardless of the powder I'm using (HS-6, Longshot, Pwr. Pistol). I am pretty sure it's not the powder charge, 'cuz I'm measuring about every 3-5 throws on the scale and making sure all are within +/-.1 grain of desired charge. Loading on a new T-7, with new dies. De-priming and re-sizing separately. Think I'm doing everything right, but.......? Any advise would be mighty appreciated.