I'm looking at building a tactical rifle setup. I've decided on shooting a .308,intend to do some tactical comps and deer hunting). Looking at using the Stiller Tach30 action, a Krieger Barrel and a HS precision stock. What is a recommended barrel length and twist rate? I was reading 1:10 is a good rate for a lot of bullets, 1:11 is a good compromise. I'll prob shoot around 175gr bullets. Also, I'm left eye dominant and right handed. I noticed with my old rifle I was more accurate if I rolled me head to use my left eye instead of my right. Is there a way to set this rifle up,scope rings, rail anything?) to be able to use my right eye and still be accurate?,If i point at an object with both eyes open from 10ft, close my right eye, my finger is still on target, if I close my left, my right eye shows my finger about 5 inches to the left). Sorry for the long post, but thanks for any help