300 is a bigger hole maybe? All of these weights are pretty close. A #3 barrel in a swirl (standard fill) is what Im going with and is perfect (to me). good luck
P.S. the only thing I can suggest is check out OregonMuley's builds on here.
Classic Edge and #3 fluted and quite nice looking. 7 1/2 pounds i think with scope 7 even without fluting maybe
That particular barrel was made by Hart, which I THINK I understand to run a tad more trim that other makers.
Also, I haven't run across many barrel makers who will flute anything smaller than a #4, and then only from .284" dia or smaller.
