The "Smash 30" 30×173mm Sniper Gun / cannon

grabcad

This is an odd project that I "designed" in my junior high school.I was only a little boy by then. I just want to make the most powerful sniper gun,I did not considered its prospect and whether it can come into reality.These days I tried to build a model for my childhood's cranky. I find there has already been the 14.5mm or 20mm sniper rifle. So I let this gun's caliber became 30×173mm.The barrel I drew before was too short,even shorter than an 14.5mm rifle.I went to find the GAU/8-A 's data,then it became what you see now.I grew up now and I know this 30mm sniper gun will not come into reality.It is so heavy and if you want to destory some target with this ,a rocket launcher or a missle may be better.Of course, if you can mention this weapon in your novel or some other science fiction works,I will be very happy. Let me know if you finsh your novel.........HA HA HA The sldprt/sldasm（Solidworks2016 or later version） IS NOT FREE, if you want to get them, contact me.Finally let me express my most sincere thanks for all these following people whose model were refered in my project.①Clint.Network's"Schmidt Bender PM II 5-25x56"Schmidt Bender PM II 5-25x56 Scope②nekosp's "M107"M107③bob's"AW 338 Sniper Rifle"AW 338 Sniper Rifle ④Vinay Bhavsar's“Left Hand Crank”Left Hand Crank⑤ENG.Mohamed Eltabey's"handwheel"handwheel ⑥DesignReferenceArchive.Pub's"Cartridge Q.F. 30X173mmNATO"Cartridge Q.F. 30X173mmNATO⑦Serj Minin's"Telescopic sight 10-40x63"Telescopic sight 10-40x63Update 2020 05 31I added some details to show what is it like when the bolt and barrel recoil to the end,maybe this will help you understand better about this crazy gun.Update 2020 08 30I upload the step,for i want my model to be better understood by all you my friends.