Barnes has data on their website for your query. They use a coal of 2.72", fed GMM210, Win brass, with accurate load listed as H4198 25.5-27gr, for 2328, and then Benchmark 30.5-33gr for 2453.

I've not tried Benchmark, or Barnes bullets, but in a G2 Contender with 14" BBl, H4198 has been a go-to powder. Feel free to use any ol' 30-30 data. I got the throat recut deeper, about .2", as the T/C factory chamber/throat spec was garbage. The chamber neck is .1" too long, and the throat was non-existent. It shoots much better now. I only shoot cast bullets and soft, pointy spitzers. You'll have a bit of a MV advantage though. Barrel length makes even more difference with low-pressure cartridges.


I belong on eroding granite, among the pines.