Viability of a straight blowback assault rifle

For the amount of effort you would need to make a blowback 65kpsi gun not shit, you would be better off just using a gas piston.

Every open-bolt straight blowback weapon has advanced primer ignition.

I've always wondered whether the delay could be introduced like one of those galileo toys, where you have a number of metal balls suspended by string and when you knock the one on one end it transfers its momentum to the ball at the other end without moving the rest.

The gun would fire and the unlock weight would be knocked rearwards against spring pressure and hit a stop, which would unlock the bolt and give it a bit of a shove in case remaining pressure is not enough to drive the bolt backwards hard enough.
think captured hammer for removing bolts and whatnot.

benefits would of course be no gas system needed, fairly easy to get very quiet, adjustable rate of fire by changing the distance the unlock weight has to move before it reaches the unlock point and main bolt momentum gets increased.

This is very common and very wrong misconception.

Funny thing is that pressure has noting to do with possibility of making straight blowback gun.

As you can see pressure is not in the formula but there are less obvious things as caliber and DIAMETER OF BOLT FACE. BTW this means that for making maximum power straight blowback guns your don't want bottle cases your want straight cases.

You're thinking of Newton's cradle. The problem is, what's driving the first weight back? With no gas system it would have to be the cartridge casing, and the problem you run into with straight blowback firearms is that for more powerful cartridges the casing moves rearward too quickly resulting in it rupturing as it leaves the support of the chamber walls.

Your weight idea would transfer the energy to the part it hits, but I'm not sure if it would actually accomplish anything. If you can find a way to leave the casing in the chamber while the first weight moves it would be a step in the right direction.

Would it somehow be possible to use gyroscopes, or even better, FUCKING MAGNETS, to delay the bolt without adding weight?

Attached: I am a genius!.png (1280x720, 843.08K)

No idea on gyros, but magnets have been tried and failed. You're just not getting a strong enough magnet in a hand-held weapon.

Even assuming these memes worked, what would they do that rollers don't?

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