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The VSS Vintorez

Chillfolks said:
View attachment 67380844


The Malyul is one of the guns I saw this on the news In Ukraine and had to go look it up. That just seems like an awkward magazine change
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that is always one of the two biggest criticisms of "bull pup" designs. Hard to change mags-especially while prone and the triggers usually suck as well. I have a STEYR AUG and the now discontinued MICROTECH copy and they both suffer from this issue
 
Rich2018 said:
Because I've never heard of such a gun that automatically changes the barrel twist rate.
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You select the bullet depending upon the barrel twist. 77 grain SMKs aren't likely to stabilize in a 1:12 twist barrel. That's why the US military changed the twist rate from the original M16 - in going from a 55 gr FMJ to the 62 grain green-tip, and more importantly, the tracer round developed to have the same ballistics as the M855, they needed a tighter twist to stabilize the longer bullets.

It's why 1:14 is a common twist for rifles chambered in .220, which fire a shorter, lighter bullet in the exact same caliber as the M16/M4 but at much higher velocities. Firing a light, fast bullet in a tight twist barrel can result in the bullet being overstabiliized and simply disintegrating before reaching the target.
 
Rucker61 said:
You select the bullet depending upon the barrel twist. 77 grain SMKs aren't likely to stabilize in a 1:12 twist barrel. That's why the US military changed the twist rate from the original M16 - in going from a 55 gr FMJ to the 62 grain green-tip, and more importantly, the tracer round developed to have the same ballistics as the M855, they needed a tighter twist to stabilize the longer bullets.

It's why 1:14 is a common twist for rifles chambered in .220, which fire a shorter, lighter bullet in the exact same caliber as the M16/M4 but at much higher velocities. Firing a light, fast bullet in a tight twist barrel can result in the bullet being overstabiliized and simply disintegrating before reaching the target.
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He really doesn't care.
 
Rucker61 said:
You select the bullet depending upon the barrel twist. 77 grain SMKs aren't likely to stabilize in a 1:12 twist barrel. That's why the US military changed the twist rate from the original M16 - in going from a 55 gr FMJ to the 62 grain green-tip, and more importantly, the tracer round developed to have the same ballistics as the M855, they needed a tighter twist to stabilize the longer bullets.

It's why 1:14 is a common twist for rifles chambered in .220, which fire a shorter, lighter bullet in the exact same caliber as the M16/M4 but at much higher velocities. Firing a light, fast bullet in a tight twist barrel can result in the bullet being overstabiliized and simply disintegrating before reaching the target.
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So a rifles barrel twist is not dependent on the bullet used, the user selects another rifle.
 
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