Well, all rifles are individuals when it comes to velocity and accuracy both. However, to the best of my knowledge, the Model 7 is as accurate as the Model 700, and a 20 inch barrel, while costing a few FPS in muzzle velocity, tends to be stiffer, and hence potentially even more accurate, than a longer one of the same contour. I don't think 300 yards would be stretching the Model 7's capabilities.