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Here is the canister with the nylon case. On a personal note, I will never again make anything with nylon. It produces lethal strands of very strong nylon string while being machined which constantly try to lasso all about and pull it into the spinning chuck - extremely dangerous stuff.
Hello,
sorry to hijack this thread, but think its a variant also.
Searched for the MBT 70 maingun and could'nt find much details. Guess these are from that program. Any more infos are very welcome.
Jason, do you have any documents on that one? What was it's purpose? It seems too short to be stable in flight. And is the proof round directly related to it? It seems too close in design - and too far from the other 152s - to be a coincidence.
Only that it had a sticker on it with a hand written, "152mm XM-578," on it.
The part that I found so interesting is the fins are welded on with a precision, puddle weld bead. Of all of my inert APFSDS specimens, I have never seen that. While very well done, seems a bit crude for aerodynamics and balance issues? I just figured since it was an experimental design, that this may have been a more efficient way to test various design configurations and the maybe the final design had molded fin assemblies. Also, the dart itself has a lot of similarities to a, US, 105mm, M735 APFSDS projectile. I need to caliper them both.
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