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 Post subject: Ribs
PostPosted: Fri Feb 16, 2007 1:26 pm 
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Why is the height on most /many shotgun barrel ventilated ribs gradually reduced as they go toward the muzzle?

Many olympic trap and other high end guns have very high ribs... in comparison to most trap guns. What is the advantage to having a high rib?

Thank You

Bill




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 Post subject: re: Ribs
PostPosted: Fri Feb 16, 2007 1:45 pm 
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The reason may ribs are higher in the rear is so the barrel points up a little in relationship to the barrel's center line. That makes the gun shoot just a tad high. Trap shooters especially like that. Why a high rib? Well some Trap guns are an Unsingle, meaning they only have the bottom barrel of an O/U. Something has to take the place of the top barrel? The other reason for relatively high ribs is so that when you pick up the rock you don't have to wait for the rock to clear the barrel's width in your eye's picture before seeing the target. All that gets in the way is the width of the rib, and it restricts less visual area than a barrel does.

BP

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 Post subject: Re: re: Ribs
PostPosted: Fri Feb 16, 2007 2:57 pm 
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Burnt Powder wrote:
The reason may ribs are higher in the rear is so the barrel points up a little in relationship to the barrel's center line. That makes the gun shoot just a tad high. Trap shooters especially like that. BP


The relationship is between the barrel's center line and the line of the top of the rib.

The high rib also helps with the heat waves coming off the barrel since your reference (bead/rib) pointing to the is higher above the cause of the heat waves.

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 Post subject: re: Ribs
PostPosted: Fri Feb 16, 2007 3:09 pm 
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Like BP says, to offer a more level shooting plane while the shotgun is actually pointing up for a higher POI. Higher ribs allow for a more upright head position in your stock mount. Lessens heat waves in your viewing plane while shooting. The high adjustable ribs allow for a POI change without changing the stock and then to set the back of the rib for personal preference in how you would like to see down the rib.

All these advantages could apply to field, skeet, and sporting guns. With the exception of a rib and stock based, built in higher POI. Why the industry doesn't increase rib height on all shotguns is the real question. Seems like a no brainer to me, and a great marketing tool. Remember when we traded our fixed choke shotguns for the choke tube models? Just had to have the versatility of changing chokes for different applications.

Now we have add-on ribs to raise the over all rib height. KeenSight comany will custom build a stick-on rib to add to any shotgun, any width, any taper. Even an adjustable add-on rib that allows for the rib to be positioned to suite the user.

http://www.keensights.com

Maltzie

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 Post subject: re: Ribs
PostPosted: Fri Feb 16, 2007 4:39 pm 
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Jason;

You caught me!

I got a bit tongue tied there. You got to take a Dutchman for what he means, not what he says!

What you said is what I meant! :roll:

Thanks!

BP



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