That is a very interesting task you have set for yourself. And its funny that I just did the same thing about 2 months ago. I was working up a difference between mk7 vs other types of hand loads. I will say it is very possible to replace cordite back into a reload case without losing or breaking any of it. It is also possible to do it relatively efficiently. the cordite is like angel hair pasta that is quite brittle. From my recent trial, I found that the hang fires kill the mk7 accuracy, 75 plus percent of the time... On my next go around I will need to re-prime the mk7 with a good primer... (flaw in my study) The key for replacing the cordite into the case is to leave a few strands out while slowly replacing the strands into the case carefully. Here is the most important part..... If you are heavy handed, clumsy, shaky, or inept kinesthetically, then you need someone else doing it... Hard pill to swallow buy sometimes just have to know what your faults are.