Maybe not the 380 gr bullets, but you can get Woodleigh 350 gr bullets, both in solids and soft points for the .375 H&H bore. Several professional hunters have written that the .375 H&H with 300 gr bullets on DG traveling at 2550 fps are a bit fast and have found they have better results dropping velocity to 2400 fps. Kevin Robertson, author of the Perfect Shot and Taylor's African Rifles and Cartridges. And the bullets being used in these results mirror current tech bullets. Woodleigh bullet have a steel jacket much like Rigby's originals and Doc Robertson has used and expresses his opinion on X bullets, so both opinions regarding the higher velocity may have some merit. By using Woodleigh's 350 gr bullets in the .375 H&H, the velocity would drop to the 2400 fps, so preferred by these pros on DG. I'm just quoting their opinion and not attempting to arouse a controversy.