6mm

I have been seeing some information about 6mm Railguns. Here is a YouTube video that gives a quick overview. https://www.youtube.com/watch?v=b4idDEwnLFQ Although these railguns were make to the same 6mm caliber, there seems to be no reason that the platform could not also be used as a high...

Hello. I was looking at Sig's mcx and thought it looked great. (I'm not a fan of direct impingement, or the buffer tube of an AR). I was thinking a 6x45 would be great in it, sadly tho sig only has there calibers for it .300 blackout, 7.62x39, and 5.56. I was wondering if there was a way to make...