Looking for opinions from experienced RUM experimenters...lol. It's a total custom with a stiller tac300 and a Brux 1:10 straight(almost) contour barrel 30". I plan on really only shooting 208amax, 215 & 230 hybrids. Need some advice on where to set the lands. My ideas for max case capacity in case I needed it, put the amaxs at 3.92 OAL and the 230 at around 4.00. Not sure what SAAMI chamber specs are but I'm sure they are gonna be to short for me. Thinking these bullets will be fine at .020-.040 off lands. Hope all this makes sense to all because it does in my head