barrel diferences

[rangur1]

What are the differences essentially between LW, TJ's, CZ and Polygonal. I'm sure there are some other custom ones. These were the ones I am aware of. specifically left out FX as they are barrel LINERS. What has been the advantage or disadvantage with the 4 I listed versus each other.

 

[Airgunmann]

TJ's is hammer forged polygonal uses a different type of rifling not sure about the other 2

 

[bigHUN]

The shape of the land and grooves different, some edges sharp some edges blended. Pretty much for different projectiles.

 

[Ca_Varminter]

FYI here is the difference between Polygonal vs Conventional Rifling.....

Rifling lands engrave into the projectile. This allow it to grip it and impart the spin..
Polygonal Swages the projectile. This squeezing grips it and imparts tha spin too........

Stuart

 

[dizzums]

the way i see it, its all pretty esoteric and experimental to begin with between rifling designs .. bottom line is a quality barrel is going to be held to tighter tolerances and have a better bore finish, thats whats gonna count .. that and the final machine work to finish it to your gun .. then theres other factors in the gun design itself that play in to accuracy and consistency .. but poly blah blah this and that being better at this and that i dont know .. first poly i ever saw was in a desert eagle .. it wears good and is easy to clean .. that much i know lol ..

 

[rangur1]

FYI here is the difference between Polygonal vs Conventional Rifling.....

Rifling lands engrave into the projectile. This allow it to grip it and impart the spin..
Polygonal Swages the projectile. This squeezing grips it and imparts tha spin too........

Stuart

I must confess, I was aware of the physical differences. My question pertained more to the properties / effects the designs had with projectiles. I'm getting the vibe that polygonal barrels are more flexible with ammo shooting both pellets and slugs fairly well. Whereas the LW and CZ are conventional barrels and don't shoot a very wide variety of ammo well , but will shoot select ammo extremely well.

 

[Ca_Varminter]

I must confess, I was aware of the physical differences. My question pertained more to the properties / effects the designs had with projectiles. I'm getting the vibe that polygonal barrels are more flexible with ammo shooting both pellets and slugs fairly well. Whereas the LW and CZ are conventional barrels and don't shoot a very wide variety of ammo well , but will shoot select ammo extremely well.

Why that is the Big Money Question.....
With Conventional Rifling... The width , height, number of Lands is the secret sauce for each barrel maker..
Also the fit and finish is a big factor...

For Polygonal... they are hammer forged. So the finish of the Spiral Mandrel that is used to "Hammer" the barrel on to
is very important. The .22 and .177 Polygonal barrels I use on my Custom Rapid. are very accurate and the finish of the bore is excellent!
Not to pellet fussy either...

Stuart

 

[qball]

Polygon vs lands and grooves are 2 different styles or approaches to rifling, both go back to beginning of time. HOW each style is implemented determines how they shoot and ammo fuzziness which really boils down to “lands and grooves” tolerance/sizing. The lands and groove sizing, twist rate along with the choke size, crown and finish or over all quality of the barrel determine its accuracy/consistency.

The “advantage” in airgun world for polygon is the smooth rifling that creates smooth impressions on the soft lead ammo which helps with aero dynamic and keeping the barrel clean by not having sharp crevasses for lead to easily built up. In center fire world with hard copper jacketed bullets polygon barrels are generally more ammo fuzzy.


LW, TJ, CZ are all just brands like Ford and Honda, they all make economy and luxury models in all different styles. FX liners are just skinnier barrels that are supported by outer housing in their STX barrel system. If you look at how FX implement the superlite barrels it’s just the liner/barrel with a shroud from the factory. FX is just another brand and their liner design is just another approach to how to make a Polygon style barrel.