Hi Wheat,
I know what every body has told you about which bullets to use and all will work well, but if you want the best results for your twist, stick to the 180 SMK or the 178 AMAX, or the 175 SMK. There are new methods to getting the best bullets for twist NOT the Greenhill method. I am not saying the greenhill methods dont work but there are methods that work better. I have proven that the optimum bullet for 1-11.25" is in fact a 190 SMK not the 175. And the 175-180 works best in a 12 twist. My advice is try all and settle with what works best. But I have a feeling that 175's to 180's will work best, or anything that is in the legnth of around 1.300" I have a computer program that anylizes twists and which bullets are best for twist and velocity, so far it has hit the nail on the head. I have a 11.25 twist gun and thought the 175's were best, and they where good, but when I tried the 190's I started shooting .75"-1.000" at 300 yards all day every day. The computer told me it would be best and I could not belive that until I tried it. Also the velocity ranges for the bullets I mentioned would be 2700-2750 More stability than needed is a waste of time for accuracy, despite what some say, it also hurts ballistic coefficients. The right bullet for twist gives 2 advantages, 1: Accuracy, 2: better B.C's Give it a try. Try all and make your own conclusion. But whatever you try, make sure you try 1.300" bullets