Poly Choke Question

Ganderite

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I am going to add a Poly Choke to one of my tactical guns (Hatsan). I notice that they offer two models.

The shorty is just a knob to wist to dial up the desired choke.

The longer one, the one we are most familiar with, has a vented section before the adjustable choke. I expect this would dump most of the pressure by the time the wad column it the choke.

Anyone know why the vents are there? And does it improve choker performance?
 
The vented section is after the actual choking section. It supposedly reduces recoil, though most shotgunners agree that the only truly effective shotgun porting comes before the choke.
 
From a shooting standpoint you'll want the smaller one. Its much less obtrusive looking down the barrel and lighter weight. I didn't know they still made them? I haven't heard of one being installed since the invention of the screw choke.
 
The vented section is after the actual choking section. It supposedly reduces recoil, though most shotgunners agree that the only truly effective shotgun porting comes before the choke.

You are right. I just took a closer look at the picture and realise I was misunderstanding it. The vent just makes it longer and heavier. And more expensive.
 
Not sure a PC is the addition of choice for a tactical gun. The tighter constrictions always seemed "tighter than they should be to me". PC seems to work for me from Cyl to Imp Mod. Get a little nervous after that.

FWIW, I own 4 of them, 2 on M12 - 12g, 1 on M12 - 20g and 1 on a M31 - 12g.

I have them all set up with the PC vent rib and PC2 Deluxe.

Very handy in a situation where you need to fine tune your pattern.
C
 
Not sure a PC is the addition of choice for a tactical gun. The tighter constrictions always seemed "tighter than they should be to me". PC seems to work for me from Cyl to Imp Mod. Get a little nervous after that.

Very handy in a situation where you need to fine tune your pattern.
C

I shoot against the clock. Most targets are easy to knock over, so a max pattern speeds things up. But some courses require power to knock over steel, or involve a longer shot.

Being able to switch from Skeet to Modified would be a handy thing. A screw in tube is ok if the entire course is suited to a single choke.

Would the PC be suitable if Skeet to Modified is all I need?

Are your patterns well distributed?
 
Is it louder to the shooter? ... or just to bystanders?

I dunno if just every time I shot it I was unlucky, but my ears rang the rest of the day when I hunted it last fall (my left ear especially and I'm right handed). Like I said I've shot guns with Cutts before with no issues. The last 37 I had with a vented Poly I just cut the cage off and that quieted it right down to normal levels. If I decide to keep the cage on this one I'll definitely be wearing an earplug in my left ear.

On the plus side, the shriek keeps the numpties away.

Cory
 
Could you still get Polychokes here in Canada? Have one on my auto five and it is great. Wanted to put one on my 37 because the previous owner bulged the muzzle but all the gunsmiths I know tell me to find a used one because no one brings them in anymore. Ended up cutting back the 37.
 
I would think it would be perfect.

C

I shoot against the clock. Most targets are easy to knock over, so a max pattern speeds things up. But some courses require power to knock over steel, or involve a longer shot.

Being able to switch from Skeet to Modified would be a handy thing. A screw in tube is ok if the entire course is suited to a single choke.

Would the PC be suitable if Skeet to Modified is all I need?

Are your patterns well distributed?
 
Is your Hatsan tapped for removable choke tubes? If so and they are a clone of a North American style Poly Choke sells screw in Poly Chokes that could solve your problem. I shipped a barrel to Poly Choke just over a year ago and had a Poly Choke installed. They accept Canadian business. Email the owners (martin bros.) and ask if they still do Canadian business and they will give you the shipping instructions. With the exchange rate and cost of the choke and shipping expect to pay near 300.00 Canadian for the work.

Darryl
 
The Hatsan I have has a thread on the outside of the barrel for the supplied flash hider. The thread is metric and is the same one used by Saiga shotguns.

Poly Choke makes screw on PCa (3 models) for the Saiga. All I have to do is buy one of those and screw it on.

My post was to ask if there was an advantage to the ported model. Does not sound like it.

I have a conventional (ported) choke that I think I will sell. It is the type that goes on the end of the barrel and is silver soldered in place.
 
Dead thread revival .....

Wondering if there are any current sources for these in Canada. I'd like to find a well used one to match a well used 1947 M37 with plain 12ga bbl.
 
The odd one pops up in the EE. Normally attached to a barrel as I believe the old ones are soldered on. I’ve been keeping my eye out as well. Think it would be great on a beater Cooey that I have.
 
Poly Choke in the states has finally closed down for good. The Martin brothers are bankrupt and lost the business. Some calls to some shops that offer smithing may turn up a "cut off" as lots of these devices were amputated in the '70s and '80's.

Darryl
 
Dead thread revival .....

Wondering if there are any current sources for these in Canada. I'd like to find a well used one to match a well used 1947 M37 with plain 12ga bbl.

?? and where will it be installed. The originals have to be bored and silver soldered in plus there was different sizes for different 12ga barrel dimensions
Other than shipping the barrel back to the US I would be shocked if there is a man alive still in canada that knows how to install one correctly
Cheers
 
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