Looking for more reach then my .375 ..options?

[Deepfork]

I absolutely love my model 70 in
375 h&h but i want a caliber that is equivalent in power but has longer reach out and touch them range... Opinions?

300PRC would be a good one. But you can get it done with the .375 H&H, .375 248gr Hammer Hunter can be loaded to 3000fps ish in the .375 H&H. That would be a legit 600yd plus gun.