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points by toyg 2 days ago | 0 comments
> It's surprising how little firearms have changed in the past century.

Isn't that a function of constraints in the deployment model, which are fundamentally unchanged? A soldier needs <something> with him to hit enemies and <something else> to reload it - and the simpler the better, to facilitate difficult deployments and keep costs down. I mean, the venerable Kalashnikov is still around, despite its well-known shortcomings...

I guess we would see major developments only if we discovered/engineered materials that can perform the function in a significantly better way.

[–] ggreer 2 days ago
Modern metallurgy does allow for significantly higher chamber pressures, and this has been done in firearms such as the M7 with its 80,000psi .277 Fury.[1] Pistol cartridges can also be made smaller for the same effectiveness (allowing higher capacity in the same form factor), as has been done with .30 Super Carry.[2] But your guess is correct: They don't really catch on because a small improvement in capacity or effectiveness isn't worth changing all the manufacturing and logistics for new cartridges. 5.56mm and 9mm are good enough, and they're cheap due to their large volume of manufacturing. Any replacement would have to be much better to be worth the cost of changing over.

Most improvements have been in things like modularity, sighting systems, and standardization for mounting accessories such as lights and laser aiming modules. Better metallurgy does mean that modern firearms tend to last longer than older ones, but even a firearm from WWI can fire thousands of rounds before the bore erodes enough to hurt accuracy. I doubt we'll see any significant change in small arms unless something revolutionary comes along, such as portable energy weapons or mass drivers.

1. https://en.wikipedia.org/wiki/.277_Fury

2. https://en.wikipedia.org/wiki/.30_Super_Carry

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