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Bubacus
February 17, 2016, 06:57
Something for the fans of the Woo:

<iframe width="660" height="402" src="https://www.youtube.com/embed/ZMdBnjeQIB8" frameborder="0" allowfullscreen></iframe>

ftierson
February 17, 2016, 12:46
Cool video...

Thanks for posting it.

The only addition that I would have liked to see is mentioning that the Daewoo K2 has a twist rate of 1/185mm (1/7.3 in) and the Daewoo DR200 has a twist rate of 1/305mm (1/12 in), mostly for people attempting to optimize their ammo for the gun...

Forrest

ServiceRifle
February 17, 2016, 19:14
There are some K2 that are 1/12. I have one

ftierson
February 17, 2016, 19:18
There are some K2 that are 1/12. I have one

That's interesting, especially since most of the info out there mirrors what I originally said...

I wonder how many of the K2/MAX2/whatever have a 1/12?

I have a K2 with 1/7...

I also have a DR200 with 1/12...

Just sayin'...

Forrest

jam762
February 17, 2016, 19:38
I thought all the K2's were 1/7, thanks for the insight.

There are some K2 that are 1/12. I have one

vandal968
February 17, 2016, 22:55
He did a really nice job with that video. If you don't know about Daewoos it gets you up to speed on everything you need to know and nothing you don't.

c

palmettomoon
February 21, 2016, 22:49
I own two K2s. Both. 1 in 12 twist rate.

ratas calientes
February 23, 2016, 00:59
Is there an easy way to determine twist rate? I have a few of these fine rifles.

N4KVE
February 23, 2016, 15:24
With me it was easy. I own a K2, & a 200. Looking down both barrels it's obvious both guns have a different twist rate. 62 gr tumbles out of the 200, but is perfect in the K2. GARY.

vandal968
February 23, 2016, 21:42
Is there an easy way to determine twist rate? I have a few of these fine rifles.

It's easy, just make a mark on a cleaning rod with a sharpie or attach a piece of tape, then see how many inches of movement it takes for the cleaning rod to turn one rev. It's a little easier with a ball-bearing cleaning rod, but it can be done with any rod if you're careful.

cheers,
c

MACV
February 27, 2016, 15:34
Is there really that much difference in accuracy with a 1/12 barrel? People talk like a 62 grn bullet starts to keyhole once it leaves a 1/12 barrel. Don't think I buy that.

vandal968
February 28, 2016, 10:51
I've never seen that happen. From what I understand, those slower twist barrels were only an issue when shooting tracers which are unusually long/heavy. Now I have seen a bullet keyholing at 15yards hitting the paper completely sideways, but that was a Century built AK74 at a 3-gun match. I wouldn't have thought it possible for the bullet to go that sideways that close to the barrel if I hadn't seen it myself.

cheers,
c

Thundermaker
February 28, 2016, 16:44
Is there really that much difference in accuracy with a 1/12 barrel? People talk like a 62 grn bullet starts to keyhole once it leaves a 1/12 barrel. Don't think I buy that.

A 1/12 twist barrel is just about optimum for shooting 55 grain bullets. It may or may not stabilize a 62, depending on a number of factors. It most likely won't stabilize an ss109, as it's longer for its weight. It WILL keyhole a 75.

1/7 will take you up to 80 grain bullets if you so desire.

Bubacus
February 28, 2016, 21:01
I've never seen that happen. From what I understand, those slower twist barrels were only an issue when shooting tracers which are unusually long/heavy. Now I have seen a bullet keyholing at 15yards hitting the paper completely sideways, but that was a Century built AK74 at a 3-gun match. I wouldn't have thought it possible for the bullet to go that sideways that close to the barrel if I hadn't seen it myself.

cheers,
c

Check out the flight path of this AK 74 at the 30 second mark to see some real tumbling:

<iframe width="854" height="480" src="https://www.youtube.com/embed/xCgmfbAbP-Q" frameborder="0" allowfullscreen></iframe>