PPQ vs VP9 barrel ... for lead shooters, take note

[Lead Waster]

Let's face it. In a PISTOL, both types of rifling are plenty accurate. And I'm sure it's the shooter (us!) that is the limiting factor.

Glock claims the barrels are that way for accuracy. I'm no sharp shooters, but both barrels shoot pretty good at my skill level and I can't tell the difference (since I have both barrels for all my Glocks, I can swap between them) Maybe a really good bullseye shooter can tell, but then they wouldn't be using Glocks (or even VP9s).

I'm just posting this info for anyone on the fence, but who might also have this as a consideration, like myself.

[brooTool]

"The advantages of barrels with polygonal rifling include a smaller gap between bullet and bore, leading to slightly higher bullet velocities, and smoother bores that accumulate less fouling, making them easier to clean. The barrels are also generally more accurate because there is less bullet deformation by the "grooves" (less "bite" into the bullet) and because the bore’s surface is formed with more consistency."

http://humanevents.com/2010/06/08/barrels-and-bullets-conventional-versus-polygonal-rifling/

Advantages[edit]


"Hexagonal polygonal rifling.
A number of advantages are claimed by the supporters of polygonal rifling. These include:

Not compromising the barrel's thickness in the area of each groove as with traditional rifling.
Providing a better gas seal around the projectile as polygonal bores tend to have a slightly smaller bore area, which translates into more efficient use of the combustion gases trapped behind the bullet,[5] slightly greater (consistency in) muzzle velocities and slightly increased accuracy.[2]
Less bullet deformation, resulting in reduced drag on the bullet when traveling through the barrel which helps to increase muzzle velocity.
Reduced buildup of copper or lead within the barrel which results in easier maintenance characteristics.
Less sensitive to stress concentration induced barrel failure.
Prolonged barrel life.
However, precision target pistols such as those used in Bullseye and IHMSA almost universally use traditional rifling, as do target rifles. The debate among target shooters is almost always one of cut vs. button rifled barrels, as traditional rifling is dominant. Polygonal rifled barrels are used competitively in pistol action shooting, such as IDPA and IPSC competitions."

http://en.wikipedia.org/wiki/Polygonal_rifling

There's a bunch more, I'm too lazy to prove that I am right. Polygonal barrels are more accurate, have higher FPS rating, last longer, etc. Button barrels are accurate but lose their accuracy a hell of a lot faster compared to a polygonal barrel.