I used to use it in a .257 Roberts (100gn) but then switched to H4350.
Then in a .25-06 (100 - 115gn) but then switched to H1000 (115 - 120gn).
Then in my .280 (140 - 160gn) but then switched to Re19.
But I finally settled on H4831sc in my .257 Ackley with the 115gn Ballistic Tip at 2990 fps with 50gn. Nosler lists 50.5gn.