First of all, my S&K drilling was made in Oct. 1935, and on mine, it's spelled Semper, there's NO "T" on the end.

Secondly, it's marked 7,8mm 57 and i did cerosafe the chamber and a couple inches of bbl... My measurments told me it is safe to use .323" bullets, and that's all i've shot in it. I handload 200NP's that i chronographed at 2,550fps, and i've taken moose and black bear on down with it over the last 25+ years i've been hunting with it. As you can see from this 200 yard group, this load/combo is VERY accurate,

Lastly, a .323" bullet does go into a fired case, although it doesn't fall in...

As a side note: I bought my Krieghoff from the guy that brought it from Germany, and it was all origional when i got it. I find it interesting that my drilling came with a straight stock, (not hog leg) and without a cheek piece. Of course it's been restocked since, but it still has the same stock dimensions as it did from the factory. The only thing that's different is the safety has been flopped to the right side, and of course the grade of wood and checkering is MUCH better.

Mine even came with "claw" mounts, (but not the scope) although i've had two sets of rings made for it, as i have two scopes for it...

So, in closeing, i'd have to say, don't "assume" anything, have YOUR bbl. checked to see "forsure" what it measures!

DM