Berger just announced a new cup and core bullet. Looks like a good alternative to the 390 Atip.
375 Caliber 410 Grain Hybrid Target Rifle Bullet
Rugged construction to survive extreme performance conditions. Unprecedented concentricity: less than .0003” runout using J4 Jackets. Hybrid ogive for tunes easy tuning and load development. Doppler verified - less than 1% B.C. variation! 375 Caliber 410 Grain Hybrid Target
bergerbullets.com