Polygonal and Non-Polygonal barrel pics

[Intercooler]

I took some pictures to try and figure this out before the Limited gets here. I purchased a bore light today to attempt figuring it out!

Razorback

Witness Match

Witness Hunter

1006

[Intercooler]

Both of the Witness pieces should be Polygonal. The 1006 I was told is straight cut and beats me on the Razorback. I kind of always thought it was Polygonal 

[The_Shadow]

The Glocks are a hammer forged barrels over a forum to make the polygonal rifling

Broach cut vs. Polygonal Rifling





The Razorback has 6 lands and 6 grooves 1:16" Twist
The Witness Match looks like cut rifling (couldn't tell it looks like 6 lands and 6 grooves)
The Witness Hunter looks like Polygonal
The 1006 has 6 lands and 6 grooves 1:16" Twist

[Intercooler]

How sure are you on the info? What picture angle on the Match would help you?

[The_Shadow]

In your picture (blurry but the lands looked rounded) 
Poly is always rounded over and smooth, the broach cut has sharp lands sticking up from the cuts.  The tool is pulled through to cut away the grooves as it is rotated.

[Intercooler]

I took three more of the Match

[Intercooler]

Two more of the Hunter. It wasn't cleaned 

[The_Shadow]

Those appear to be cut rifling...

What about the Hunter?    Well you posted while I was typing.  It looks to be poly as it has the rounded over lands and valley

[Intercooler]

So in reality only my Hunter is Polygonal? The fact it doesn't have sharp grooves wouldn't that make it actually better for lead?

[Intercooler]

   Something that puzzles me when I do Chronograph testing is how the 1006 measures slower than the Razorback by a good amount, with the same twist and barrel length. Then the Match with maybe the same twist in a 1/4" shorter barrel matches almost perfectly with the 1006 

     I always gave credit to Polygonal rifling which it doesn't look to have!

[The_Shadow]

The Hunter...you say has squared cut rifling?  It Looks rounded over in the pictures.   Polygonal is smooth no sharp lines!
The Razor vs. S&W1006 one may have a tighter bore to increase friction vs. pressures?

From EAA
Hunter descriptions SA/OTS, EMS, SS, PR, CSF, DFS, SMH, AFPB
Explanations
AC=Ambidextrous Controls, AR=Integral Accessory Rail, BM=Beveled Mag Well, CB=Cone Barrel/Slide Lockup, CS=Checkered Front/Back Strap, DA/SA=Double Action/Single Action, EMR=Extended Mag Release, ES=Extended Safety, FAS= Full Adjustable Sight, FDC=Full Length Dust Cover; HSH=Heart Shaped Hammer, LPWS=Low Profile Windage Sight, PC3=Three Port Comp, PR=Polygonal Rifling, SA=Single Action, SMH=Drilled & Tapped for Scope Mount, WAS=Windage Adjustable Sight, WD=Wonder Finish

Match description 2-TONE FINISH, SA/OTS, FAS, EMR, ES, IAR
Elite description DA/SA, FAS, EMR, CS, ES, AC, HSH

[Intercooler]

Yea.

I just looked it over too and you get Polygonal in the Hunter, Gold Team and Limited. All the others... nope 

[The_Shadow]

cool, It looked like that to me!  Then I when looking an found the info.  BTW some of the big bore revolvers from S&W are polygonal like the 460 and 500 models.

[gandog56]

I was trying to think if I even had one pistol with polygonal rifling. Was the CZ 52 I traded because the trigger pull was horrible, one? That and the fact it was very inaccurate. When I got my Rommie Tok, it didn't take me long to say bye bye, CZ. But I still have a CZ82, which has a much better trigger, and IS accurate. Same company, it might be, too.

Yep, just looked...it is. So the 52 inaccuracy was NOT caused by the polygonal rifling. Combination bad trigger, and I guess an inherently inaccurate pistol.