I built mine. Rem 660 with a 284 win light tube. Figure it'll take anything I need up to moose. Doesn't leave a lot of room for error in the larger animals but I'm ok with that. I just have to get close enough and pick my shots.
May the road rise to meet you, May the wind be always at your back, May the sun shine warm upon your face, The rains fall soft upon your fields and, Until we meet again, May God hold you in the palm of His hand.