hilbilly, the popular cartidges are .260 rem, 6.5x47 lapua, 7br, 7-08 and others. I would say a mod. 700 rem. would be a good choice for a rifle. My first choice would be a .260 rem in mod. 700 using 107 smk for the c,p,t and 142 smk for the rams. Before building a new rifle you could use your .270 to see how you like the sport, then if you like it you can have a rifle built. Also attending some matches will give you an idea what guns other shooters use.
Drags