This is just asking for people's opinions and preferences with their personal experiences. What barrel manufacturer, contours, how the rifling is cut (Button vs Cut), the numbers of lands and grooves, 5R and so forth? I really would like to know what everyone thinks on this particular subject. There are no wrong answers and I appreciate everyone that takes the time to respond to my questions! I'm a open minded person and I'm trying to learn as much as possible when it comes to Precision shooting rifles, custom or factory builds. There's nothing I like more than shooting a rifle that is capable of 1 hole groups at 100 yards and less than 1/2 moa at 500! Thank you for everyone's input.