Low Bearing Compression Rifling is a design in which a barrels grooves and lands are cut. The barrels we use on the McMillan/EOL line are designed to apply pressure more then cut the bullets jacket as it twists through the bore. Think of it like the egg theory. If you squeeze an egg it will not break as the pressure is equal on all sides. However if you turn your finger tips into it, it will break. Now by squeezing the bullet vs cutting the bullets jacket, the bullets jacket has less trauma during flight. Therefor remaining stable for longer, also showing the slight ability to fly faster for longer, delivering more energy at impact.