I am listening gentlemen. Thank you for your input.
The .450 Bushmaster is designed for 300yds accuracy. By "longer range", I do not really mean targets shooting at 1k yards, I simply don't want to be limited to 300yards should the opportunity for an out of state hunt with different requirements arise.
At some point, I will also have an upper for small game, such as prairie dogs as well. (I have been paid to shoot rats, at one time).
My aim here, is the Lego Rifle. Different hunts, different uppers.