Description
The Carlson's Delta Waterfowl Extended Mid-Range choke tube is built for the shots that matter most in the duck blind, right in that 25 to 40 yard window where a lot of waterfowl end up. It's machined from 17-4 stainless steel and features a longer parallel section than a standard choke, which is the whole point here. That extra length gives steel shot more time to settle into a tighter column before it leaves the barrel, so you get denser, more even patterns with fewer flyers drifting out of the kill zone.
What Sets the Delta Waterfowl Mid-Range Tube Apart
The .600 constriction lands in modified territory, a solid all-around choice for decoying birds and pass shots at moderate range. Because the tube extends about three-quarters of an inch past the muzzle, it also helps protect your barrel threads from the wear that heavy steel shot use can cause over a season. Steel is hard on chokes, and this design takes that into account. Carlson's also lasers the constriction and size right onto the tube, so digging through your gear at oh-dark-thirty to figure out which tube is which becomes a non-issue.
Fitment for the Delta Waterfowl 20 Gauge Choke
This particular tube is cut for the Winchester, Browning Invector, and Mossberg 500 thread pattern, and it also fits Weatherby, pre-1993 Ruger Red Label, and similar 20 gauge guns using that system. Worth noting: the Winchester SX-2, SX-3, SX-4, and SXP use the Browning Invector Plus system instead, so those need a different tube. If you're unsure what your barrel takes, check the markings on your existing choke or the interchange info before ordering.
Carlson's makes these in the USA and backs them with a lifetime warranty, which says a lot about how they expect the tube to hold up. As with any choke, pattern your gun with the exact shell you plan to hunt with, since different loads throw noticeably different patterns even through the same tube. It's the cheapest insurance you'll ever buy for cleaner kills.
Key Specifications
- Manufacturer: Carlson's Choke Tubes
- Manufacturer Part Number: 07454
- UPC: 723189074548
- Gauge: 20 Gauge
- Constriction: Mid-Range (Modified)
- Constriction Diameter: .600
- Effective Range: 25 to 40 yards
- Material: 17-4 Stainless Steel
- Configuration: Extended, Knurled Removal
- Thread Pattern: Winchester / Browning Invector / Mossberg 500
- Steel Shot Compatible: Yes
- Chokes Included: One Choke
- Warranty: Lifetime
- Country of Origin: USA
What’s Included
- One Carlson's Delta Waterfowl Extended Mid-Range 20 gauge choke tube (.600)
Frequently Asked Questions
What shotguns does this Delta Waterfowl 20 gauge choke tube fit?
It's cut for the Winchester, Browning Invector, and Mossberg 500 thread pattern, and also fits Weatherby, pre-1993 Ruger Red Label, and similar 20 gauge guns using that system. Just note the Winchester SX-2, SX-3, SX-4, and SXP use the Browning Invector Plus pattern instead, so they need a different tube. Check the markings on your current choke if you're not sure.
Can I shoot steel shot through the mid-range choke?
Yes, all steel shot sizes are fine through the close and mid-range constrictions, and the tube is designed to pattern steel well. The extended design also helps protect your barrel from the wear that heavy steel use can cause. The tighter long-range tubes have more restrictions, but this mid-range tube is very flexible.
What range is the .600 mid-range constriction best for?
The mid-range tube shines in that 25 to 40 yard window, which covers a lot of typical waterfowl shooting over decoys and moderate pass shots. The .600 diameter puts it in modified territory, making it a great do-it-all choice if you only want to carry one tube. It balances pattern density and spread nicely for ducks.
Do I really need to pattern my gun with this choke?
It's worth the time. Different brands and loads of ammunition throw noticeably different patterns through the same choke, so patterning tells you exactly what your setup does on paper. Spend a box confirming your shell and choke combo before the season and you'll shoot with a lot more confidence in the blind.





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