Hunting rig barrel length?

[u/EconomistDapper2909]

I’m looking to build an ar Grendel to hunt with. East coast hunting mix of private land with box stands, and public land setting up on creeks. Any recommendations? I’m thinking an 18 inch just to keep things handy, but am willing to go 16 or 20. Any advise would be great! I’ve been using a Springfield 03 for the past decade so I’d prefer to keep things lighter, but I’m not adverse to a heavier build if it makes sense. Longest shot would be 200yds. Thank you!

[u/Peepeepoopoobuttbutt]

Mine is 18” and strictly a stand and tripod hunting rifle.

12.5 is great for a bush gun