Pattern Master Chokes are made for extended Ranges. I believe they are coming out with, or have just come out with some closer shooting chokes. But Bullet is right, the PM strips the wads, just a little early letting the pellets stay together farther out into the pattern.
I would say that they would not be worth a darn unless you were shooting 35 yards and farther. On decoying birds (20yards & less) the pattern, I would think would not be any bigger than a orange. If you actually hit a bird, it would destroy the bird. Plus not mentioning the fact that it would make hitting them much toughter with a small pattern.
If you were goose hunting, and shooting at the long range, they would be the ticket. But I don't believe that there is a 1 Choke Meets ALL Needs.
I use 2 Brilley Extended Choke Tubes:
Brilleys Cylinder Bore
- For shooting over decoys. It is the most OPEN Choke available and is as good as they come when shooting birds over decoys (25yards and less).
Brilley's Lite Modified Extended Choke Tube
- The LM lets me shoot from 25 yards - 40yards with a very nice pattern out of my SBE. At 30-40 yards the pattern is about 30".
I carry this 2 Choke Tubes on me at all times. One in the gun, and the other in a Shell Loop in my waders. Most of my shooting is Up Close and Personal (15 feet to 20 yards), but if for some reason the birds are skittish and I'm having problems getting them to commit. I just change Tubes on the spot, and I am right back in the action.
Geese is a whole different matter. But if you are having to consistantly shoot ducks at the 40 yard range. Then I would work more on getting the ducks closer than being able to shoot farther.
At 40 yards, a pattern with just about ANY choke is starting to break down so badly that you will be doing MUCH MORE crippling, than killing. And crippling at that range, the duck isn't hurt enough, that a dog would have a decent chance of getting the cripple. cooter
PS: I hate hunting with hunters that use PORTED CHOKES, my ears ring for days.