DA 556 twist rate?

[PepeLapiu]

Hey, I bought a 14 inch DA556 from CanadaAmmo about 2 years ago.
I'm trying to find out what the twist rate is on my gun. But I can't find any markings to that effect.

Can anyone help me out here?

Thanx

 

[kawicrash]

You could do the cleaning rod and tape trick.
Make a flag with a piece of tape on your cleaning rod and measure how far the rod travels to make one revolution of the flag.

 

[CanAm]

I will check tomorrow. I believe they were 1 in 9, but 5 mins and the tape trick will confirm.

 

[kevmicball]

mine is 1:9

 

[PepeLapiu]

mine is 1:9

How do you know? Any markings on your gun?

 

[Phat Eagle]

I've been told they were 1:9. IIRC the 20 inch rifles were old-school 1:12.

 

[Joel]

To be as inaccurate as I read yours is, I am wondering if its not damage to the crown or strikes to the flash hider.

There's no AR twist that shouldn't shoot 55gr acceptably.

 

[Travis Bickle]

All I know is that when I owned one years back I shot 62gr FMJ extremely well so I can at least confirm it's 1:9 guaranteed.