• Winner! Quick Shot Challenge: What’s the dumbest shooting myth you’ve heard?

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    barrel length ? for 243 ar-10

    I have a DPMS 338 federal(.58" groups at 100yds) i get to keep. i am having to down size on number of guns due to divorce. thinking of going to a 243 cal upper to compliment the 338 fed. Is 243 critical for a barrel length? want something for pronhorns coyotes etc. ammo not $. easy to get...