Swiss Arms Rate of Twist

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Hey Guys

I have been reading alot lately about the rate of twist of some of the Swiss Arms rifles. I was reading a thread that one of our members posted some pictures of his newly aquired Classic Green(non-restricted), and another member posted saying, oh you have one of the 1 in 7 barrels.

Now my Question is how can you tell by outside appearance what rate of twist you have, or if there is any way of telling?

I know how to check using a cleaning rod, but if there is a way to determine this without pulling out a cleaning rod at my local gun shop or at the gun show.

I have had a Black Special Target, and now have a 17.9" Barrel Classic Green Carbine, The only thing that I can see is my Cabine has an internal thread in the muzzle brake/ flash hider. Don't know if this means anything?

Thanks for the education guys.

:cheers:
 
IMG_0206.jpg


Top one is a 1:7 twist and the bottom one is a 1:10 twist.
The length of the flash suppressor is slightly longer.

IMG_0211.jpg


This next photo shows the internal threading on the 1:7 twist barrel.

Suprisingly enough, I've noticed differences in length of the flash suppressors on 20" and 14" barrels with 1:7 twists as well.
 
Any change if you have some photo on the rest of the barrel?, I am also looking at getting another one in Carbine version....
 
IntelGDR691 said:
I just got a 1/7'' barrel from TSE (Classic Green) and the flash suppressor is not threaded...:confused:
Click to expand...

I wouldn't put too much stock in what I posted for photos - insofar as 'if it is a 1:7 it will definately be this or that...' It would seam to me that SAN has a few options and profile designs they'll turn their barrels into.
To be 100% sure, I'd recommend checking the rifling internally to find out the twist.
 
damnit. i hesitated for a while in buying that rifle. i actually bought an AR15 instead of that swiss arms. not sure if you remember a couple months ago there was this moded up, pimped out AR15, short barrel. i bought that over the swiss arms and i will always regret doing that. :( if i had only put up an extra 200 bucks.
 
Buy one. Shoot it. Be happy with it.

The 1in10 will stabilize most commonly available ammo.The 1in7 will stabilize almost any ammunition you can load into it if you can find or reload it.


I'd neither lament nor celebrate one way or the other.
 
Use a cleaning rod that has a rotating handle (or allow it to turn). Bring it down the bore. Mark the rod with a small line horizontal with the rod with a sharpy or something. Pull the rod out watch the mark that you made till it makes one revolution and make another mark on the rod. Measure the distance between your marks. Thats your rate of twist.
 
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