Description
TSS ammo changed the turkey game, and this Carlson's tube is made to keep up with it. The .665 constriction is the more open of Carlson's two 12-gauge turkey offerings, and that matters more than folks expect. Tungsten Super Shot is dense and unforgiving, so over-choking it can blow a pattern wide open instead of tightening it. This .665 gives the payload room to settle down and build a hot, even core, which is exactly what a lot of hand-loaded and heavier TSS setups want to see on the pattern board.
What the TSS Turkey Choke Is Dialed In For
Carlson's tuned these tubes for Federal Premium Heavyweight TSS loads, but they play nice with other turkey ammo in the smaller 7 to 9 shot range too. The whole point is stacking the maximum number of pellets into a 10-inch circle at 40 yards, which is where a turkey's kill zone lives. That density is what gives you clean, ethical headshots when a bird hangs up out past where a factory choke would start thinning out.
How the .665 Invector-DS Choke Is Built
This one is machined from 17-4 heat-treated stainless steel, so it shrugs off heavy buffered turkey shells and holds up to corrosion season after season. It wears a non-reflective matte finish, which keeps the muzzle from flashing when a longbeard is working your setup. The extended profile sticks out past the barrel and gives you a longer parallel section than most factory tubes, and that extra length is a big part of why aftermarket chokes pattern tighter. It threads into the Browning Invector-DS system, fitting guns like the A5, 725, and 2013 Citori.
Getting the Most Out of It
Patterning is not optional with a turkey gun. Every barrel and load combo behaves a little differently, so shoot a few rounds at paper with the exact shells you plan to hunt before opening morning. Keep in mind this tube handles lead, plated, bismuth, Hevi-Shot, and TSS, but it is not meant for steel shot larger than #4.
Key Specifications
- Manufacturer: Carlson's Choke Tubes
- Manufacturer Part Number: 38025
- UPC: 723189380250
- Gauge: 12 Gauge
- Constriction: .665
- Thread Pattern: Browning Invector-DS
- Choke Style: Extended Turkey
- Material: 17-4 Heat-Treated Stainless Steel
- Finish: Non-Reflective Matte
- Length: 7.85 in
- Chokes Included: 1
- Recommended Shot: TSS and small shot #7 to #9
- Made In: USA
What’s Included
- Carlson's TSS Turkey Extended Choke Tube (.665, Invector-DS)
- Standard choke wrench
Frequently Asked Questions
Will this TSS turkey choke fit my Browning shotgun?
This tube is threaded for the Browning Invector-DS choke system, so it fits guns built around that pattern like the A5, 725, and 2013 Citori. If your barrel is stamped Invector-DS you are good to go. When you are unsure which system your gun uses, check the markings on your factory chokes or the barrel before ordering.
Why go with the .665 constriction instead of the tighter .640 TSS choke?
TSS is extremely dense and hard, and cranking it through too tight of a choke can actually scatter the pattern rather than tighten it. The .665 gives the payload room to form a solid core, which suits a lot of Apex and hand-loaded TSS setups. Many hunters find the sweet spot sits in the .665 range, but the only way to know your gun's preference is to pattern it.
Can I shoot regular lead or steel loads through this Carlson's TSS choke?
It handles lead, nickel and copper plated, bismuth, Hevi-Shot, tungsten, and TSS just fine. It is not built for steel shot larger than #4, so keep your heavy steel waterfowl loads out of it. For turkey duty with lead or TSS in the smaller shot sizes, this tube is right at home.
Do I really need to pattern my gun with this choke?
Yes, and it is worth the range time. Every barrel and load combination throws a slightly different pattern, so the tube that hammers in one gun may need a load tweak in another. Shoot a few rounds of your chosen hunting shell at a target to confirm your point of impact and density before the season opens.



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