LOL, I get your “point” but a 6.5 mm rifle, made 75 years ago, is a little bit out of this conversation since we are talking about arguably the most complicated and sophisticated war machine ever devised and operated by man.
That 6.5 mm rifle probably cost about 5 bucks (in million unit quantities) to build back then. I believe the most recent built US attack sub was around 10 billion.
Finally, as we all know, the squinty eyed Japs lost to our marines, soldiers and sailors.....just as a Chinese Sub Captain surely will too....................when the time comes.
Closer to $1.5 billion.