desertshooter,
For my 257 Roberts I practice with PRVI 100 grain psp during the off season just to keep my offhand halfway decent. Then I shoot some of my deer load, 100 grain Nosler Partition just before season to make sure I'm still sighted in. My reloads for each hit the same POI out to 200 yards.
Otherwise, I just use Sierra's for everything except 9.3 and 180 AB in 8mm.
Closest you might get to what you're asking for is Nosler Ballistic Tip or AB 2nds from Shooter's Pro Shop.
