Rebarreled to a 30-30 .....500yds? No. Little stalking gun, compact 4x scope, 100yds 200max.
Part of reason I'm looking at the lighter bullets is a hope to get a little more velocity in lighter loadings
I reckon the 125 NBT would work well for you, but good luck finding any right now.
The Barnes is in stock here:
https://battlehawkarmory.com/produc...kout-.308-120-gr-tac-tx-flat-base-50-box