Hello. I am need some help I'm making a decision. My job has brought me to all this flat, long range land. (NE Az.) I need a Barrel for my encore;243. 22/250, 6mmbr , 220 swift ,then you have the AI's. Back home just a 400yd shoot was the most I could find. Here 500+ easy. So with all my ramblings, what is the opinion of the wiser masses? I'm leaning to the 243.AI 24"- 26" (twist?) barrel pushing @75GR pill. Have not chose any thing yet, just wanted to field some opinions. Thanks.