[Guest]

i just want to know what is the purpose the the vents or ribs on a shotgun barrel? They dont seem to vent anything the barrel is just as hot when fired alot and they give no room for a heatshield.

 

[winders]

"Vented rib" means that air passes through the rib. So yes, they do vent air so the term is accurate.

The vented rib exposes more of the metal to air which will allow it to cool off faster. Yes, this means there is less metal to act as a heat sink, but that is more than offset by the extra cooling.

Vented ribs make for a lighter gun overall and look cool too.

Scott

 

[javven]

Ventilated ribs also elevate your sight plane, giving you more than the reflective bbl surface (which often glares) as a bottom of your 'sight box'.

Vent ribs are worth the investment.

 

[12GA guy]

The main purpose of a rib (also know as a vented rib) on a barrel is to prevent heat waves distorting your vision when shooting. A plain barrel after several shots will start to have heat waves.

The "vents" you may be talking about, do you mean the little lines of holes near the end of the barrel? If so, these aren't designed for cooling. These are gas release vents, sometimes known as a muzzle brake. Their purpose is to prevent muzzle jump, and recoil. The idea is that the gas's forced out of these vent holes will push your muzzle down, at the second your shot leaves the barrel, so it dosen't jump up as much. This helps you get the gun back on your next target,( or for a second shot on your first) without having to re-level the gun as much. They tend to be a feature most often found on field guns, although some range shooters are using them as well, do to the reduced recoil.

I have one gun with them, and one without. I like them, but they are a lot louder, and you better have your ear plugs in!! :shock:

 

[Tal/IL]

Vented ribs are designed to dissipate heat and prevent heat waves from distorting your view. Not all ribs are vented. While not as common, one will occasionally see a gun with a solid rib.

 

[Guest]

how will i know if mine are solid or they do vent?

 

[javven]

If you can see light anyplace between the top of the rib and the top of the bbl it would be considered a ventillated rib. I have a solid rib gun, but I haven't seen one made new in a while (at least on a pump - double's a different story).