Old school 338 cal 160 nosler ballistic tip.
338 Lapua Ackley 40 degree
30 inch barrel
Load for 300 gr SMK in formed brass was 100 gr retumbo, IIRC
Same load on the 160 gr went 3600 fps ish. Room for more, but those little bullets didn’t love the 9.3” twist barrel, so never went more...