BlackBore Shotgun Choke Articles


Now that we have considered the question of flush chokes versus extended chokes, let's discuss the related but equally controversial subject of ported versus non-ported chokes. Both sides have their advocates and detractors, but it pretty much boils down to personal preference more than anything! But the question is still unanswered so lets take a quick look at the advantages and disadvantages of both types.

For the non-ported folks, there are these to consider:

1. There is no sideways blast to distract or buffet the shooter and anyone to the side of the shooter.

2. Noise levels are less than ported chokes.

For the ported choke side, this can be said:

1. Reduces felt recoil (subjective).

2. Attentuates muzzle rise (subjective).

We can pretty much all agree that these few points are valid arguments as far as they go for ordinary ported chokes. But what if the ports in the choke actually help the shooter better their shooting game?

Obviously, BlackBore Chokes is in favor of ported chokes because of specialized ports (patented) that work for the shooter and enhance their shooting abilities. Yes, there is a certain amount of blast and noise associated with BlackBore Chokes, but it is not all that objectionable with quality hearing protection that one would use anyway while engaging in the shooting sports. That is just prudent and common sense. And, I don't know anyone that positions themselves so close to a shotgun shooter that they typically fall into the "blast zone", so to speak.

But what about the so-called enhanced features of the BlackBore Choke port that makes it a better choke than any other? I am glad you asked!

1. The BlackBore port is cut during machining in such a way that a knife blade is formed in the port. This blade slices and dices the wad as the wad/shot column leaves the barrel through the choke. You will actually see bits of the wad in the air and on the ground after shooting.

2. The wad is momentarily slowed down just enough that the shot completely exits the barrel without the wad. Without this "resistance" inside the choke, the wad would follow the shot out of the barrel and "blow" through the shot column causing fliers of the pellets.

3. Another benefit is that the pressure wave of the combustion gases behind the wad is prevented from "buffeting" the shot as it leaves the barrel. This further reduces the possibility of interference of the shot column by the "blast" wave as the shot leaves the barrel.

One other added benefit is that customers have told BlackBore that cleaning the choke is very easy! The ports act as "jet nozzles" that blow the carbon out of the choke leaving very little to remove from the port and choke body!

There you have it. BlackBore's take on ported chokes. Take a look at them if you are in the market for a choke that will help the shooter get better at his game!


Shotgunners that are concerned with choke performance know to test their shotgun/choke/shotshell combo using the pattern board. There just is not a better way to do it!

The usual way (as all the books/articles, etc. state the procedure) is to set up the pattern paper, step off 40 yards and take the shot. Using a thirty inch circle to encircle the densest portion, you count the pellets and figure the percentages. Using a Cylinder choke (not really a choke, but actually an extension of the barrel bore), the percentage count is supposed to be in the order of 40% at that range. For Improved Cylinder, the percentage is 50%, Modified at 60%, and Full at 70%. Just remember, these are averages and your milage may vary!

Frankly, I don't know any shooter that blasts away using an IC or MOD at forty yards and expects good results! So, let's look at doing pattern testing using a slightly different method.

Why not simply test CYL chokes at 25 yards, IC chokes at 30 yards, MOD chokes at 35 yards and FULL chokes at 40 yards. At these different ranges, the pellet percentage should be near the 70% pellet count for each choke! By using the right choke for the distance, your probability of hits goes up which results in more clays destroyed and more game in the bag. The shooter will have to pay more attention to the distances to the target/game, but the results should be worth the effort.

And, by investing in BlackBore chokes (made from 17-4 PH stainless steel), the shooter knows the choke will work for him/her every time, stopping the wad from "rear-ending" the shot column and eliminating fliers!