I ended up with an 18 inch LR .308 because that is the longest rifle that I can easily handle getting in and out of my vehicles. Getting tangled up while trying to deploy a rifle is potentially a bigger issue for me than being limited to 987.2 yards. For those who enjoy 1000+ yard competitions, choose what works best for you.
You will never begin in the fight you have planned for. You will begin in the fight the other guy has planned for. Retreat in a manner that leads him into your fight should he press his attack.