Pheroze
AH ambassador
I am in the process of having one built on a Brno ZKK 602. The rifle was a 375 H&H and will be reamed out to the larger 400. Barrel was made by Douglas. I suspect you could have one made from most 375 H&H actions.I was just curious as to what brand of rifle you own that is chambered for the .400 h & h? I have been unable to find any information for that cartridge chambered in a rifle in the U.S.? I really like the dimensions of that cartridge. Thanks!