Re: the 408CT vs the 338-378 watherby
Accurate info from Dantec. Use the mk-5 action, or a custom. The 378 case is a big powerfull sob. There is really no comparison. I have never worked with the 408 case and can only speak for the 338-378 which I have been doing since the 1970's and currently own 7 of them. I have done quite a bit of research on the 338-408 wildcats and they just can't be built on a hunting weight rifle that I can carry all day. From the velocities reported on here many times there is about 200 fps difference between the 338-408 imp and the 338-378 wby with a 300 matchking. In other words about the difference between a 338-378 and a 338-300 ultramag with the same bullet. The accuracy loads in my 7 run between 3000 fps and 3100 fps depending on the gun with the 300 matchking. Some closer to 3000 and some right at 3100. The accuracy loads in the 338-300 ultramag are going to run between 2750 and 2850 fps for comparison. From what I have seen stated on here many times the 338-408 wildcats average right around 3250 with the 300 matchking. I doubt an elk would ever notice the difference between the 200 fps but you sure would trying to haul the CT around. I am basing that on the fact that I have killed numerous elk/caribou size game with my 338-378, 338 Lapuas and my 338-300 ultramags. All of them died pretty good so I can't imagine them dying any better with the CT. The flatter trajectory would be nice but everyone seems to like the 338-300 ultra at 200 fps slower than the 338-378 so it must be a wash.
Predictions are difficult, especially when they involve the future