How about .333 OKH, 9.3x74R, 9.3x74R imp., .408x74R, .338RDS, .375 RDS, .416 RDS, man, there are hundreds of them....
As for the 338-06, i built one in the 70's to try out the cal. and that rifle harvested moose, brown bear, deer, ect.... I liked it enough i built a second one on a LH Rem. action, and custom french walnut stock that i still have. With the second rifle i shot 13 big animials with it the first 3 years i hunted with it. I like it a lot, and it worked very well...
That's my 338-06 in the pict...
Drilling Man