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#511511 04/15/18 01:33 PM
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I recently bought a 20ga single shot Ithaca/Lefever nitro express series 'field and trap' model because I like hammerless singles. This one is tricked out with a vent rib and a fairly modern Poly-Choke with ported section at the end.

It has also had the chamber opened to 3 inches. When I was a kid with nothing but a single shot .410 this combination was one of my fantasies.

I am considering using it with 3" Federal heavy metal or the new tungston super shot loads. My first question is whether the TSS would ruin the poly choke. Secondly, while there appears to be way plenty barrel thickness where the chamber was extended, I kind of wonder about damaging the gun (any more) with the heavier 3" loads.

What'd'ya think?...Geo

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George, that's a nice looking gun. Nice tools made by an Unfrozen Caveman Lawyer.

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Thanx Gil, my phone gets ornery sometimes and wouldn't let me post the pics...Geo

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Some reason, that Poly-Choke lying there on the Purdey cleaning cloth makes my eyes hurt...Geo

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You can't hurt that gun or a PolyChoke with any factory load, even with the new TSS.
JR


Be strong, be of good courage.
God bless America, long live the Republic.
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As with any adjustable choke where the barrel is slotted, patterning in various choke settings is extremely important.
It may throw perfect patterns but I once had one with such a Poly-Choke that threw the pattern in different quadrants of the patterning board depending on the setting I had it on.

DAM16SXS #511543 04/15/18 11:21 PM
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Originally Posted By: DAM16SXS
As with any adjustable choke where the barrel is slotted, patterning in various choke settings is extremely important.
It may throw perfect patterns but I once had one with such a Poly-Choke that threw the pattern in different quadrants of the patterning board depending on the setting I had it on.

I have heard of this also over the years, had about forgotten it. Send the barrel to Mike Orlen and let him cut that abomination off and install an extra full tube.
JR

Last edited by John Roberts; 04/15/18 11:22 PM.

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Tools which supposedly offer the ability to multi-task, using them, seldom work as well as a dedicated tool. If PolyChokes and Cutts Compensators had been the answer to the question of how to change pattern sizes in the field, or how to make one gun/barrel set multi-purpose, threaded choke tubes would never have gotten the market share they have.

That's a nice old shotgun, Geo. I'd be inclined, if I wanted to dedicate it to turkey, to do as John suggested.

SRH


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Very interesting point about the polychoke shooting to various points of impact at different settings. Good advice about losing the pickle and having a set turkey choke installed. Gil Stacey and I have been discussing that off line.

I think I'll try it out as is the rest of this season and shoot a few patterns at a refrigerator box or something. My main concern was 'do no damage'...Geo

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I have looked over one of these years ago. Looked it up in Blue Book at the shop because I never seen one before. If I remember correctly considering grade relatively few were made (Ithaca-Lefever I think). I would not pay someone to remove useful feature to replace with something of no added benefit. I would appreciate if you test that gun and tell how it went. You will need old tire, long string and something to take cover behind. If you want I can bring some ammo to the Southern for you to use. Sorry, can't help with tire and string part.

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