Now that the inner case sides are temporary fitted into place this is now giving the exact size of the case we have to work in, it is the barrel section dividers that are next to be made. Though as well as the dividers we have also to construct the barrel mounts that hold the barrels level in the case, also limiting that barrel movement that causes an annoying rattle when the case is carried. The next two photographs show how to fit the barrels vertically in their compartments, it may look a little crude but it is the best way I have found how to get it right first time when you come to make the barrel mounting blocks. The mounting blocks are to set the barrel level in the case along its length, they also make the difference between the barrel looking as if it has just been dropped in and the case fitting it.
Once you are satisfied that the barrels are sitting level and at the correct height we can now make the two sets of mounting blocks using the total height of the temporary height adjusters we have used. Now because both barrels are the same bore and the only difference is the length all the blocks can be made at the same time, though the shorter barrel muzzle block is quite different from the longer barrel.
The mounting blocks on the left of the photograph are for the breach end of the barrels, the muzzle mounting blocks are extreme right and lower centre.
The two upper centre blocks are also barrel mounting blocks but these are only needed for this design of barrel fitting, they are needed to stabilise the crooked barrel partition.
I hope this makes the use of the barrel mounting blocks more clear. At this point I should mention that there is very little difference between the mounting blocks if you wish to mount a barrel horizontally, obviously they are wider and the block at the barrel breach has two small blocks with the gap between them to allow the lumps to pass between so they support the barrel on its flats. Their height etc. is adjusted accordingly to have the barrel sitting level in the case.
This is one of the major reasons that vertical mounting of barrels in cases is not seen all that often, because of the need to use of bent dividers. They look that they can be problematical to make but using my method rather than separate pieces, it will be far easier than you may think. Now because the layout of barrel and fore ends seem never to be the same I can not give any measurements for their construction but as you will see that will not matter.