Description
Bismuth ammo has become the go-to for a lot of waterfowlers who want the killing punch of lead with the option to hunt over non-toxic-only ground, and Carlson's built this Bone Buster tube specifically to make that shot shine. The Mid-Range constriction runs .025, which is where a 20 gauge really lives for most duck and goose work, holding tight enough patterns to reach out without pinching your spread so hard that close birds get shredded. Real-world hunters tend to leave the Mid-Range in the gun the vast majority of the time, and for good reason.
What Makes the Bone Buster Pattern So Well
The tube is CNC machined from 17-4 heat-treated stainless steel, and the key to those dense patterns is the longer parallel section inside the choke compared to a lot of factory tubes. That extra straight run before the muzzle gives the shot column time to settle down, which translates to more even pellet distribution and fewer holes in your pattern. Carlson's did a bunch of load testing to dial this design in around bismuth specifically, though it isn't a one-trick pony.
Fit and Ammo Range for This Bone Buster Tube
This 09224 model is cut for Winchoke, Standard Invector, and Accu-Choke systems, so it drops into a wide range of Winchester, Browning, and Mossberg 20 gauge shotguns. On the ammo side, the Mid-Range handles all lead, Hevi-Shot, bismuth, and steel shot, which makes it a genuinely versatile tube whether you're chasing ducks over decoys or knocking down upland birds. Carlson's rates the Mid-Range for its best performance in the 20 to 45 yard window, which covers the overwhelming majority of shots most waterfowlers ever take.
Built to Last and Backed for Life
Stainless construction means it shrugs off the wet, muddy abuse that comes with a duck season, and it's proudly made in the USA. Carlson's stands behind it with their lifetime warranty, so this is a buy-once tube. Just note it's designed for shot, not slugs or sabots.
Key Specifications
- Manufacturer: Carlson's Choke Tubes
- Manufacturer Part Number: 09224
- UPC: 723189092245
- Gauge: 20 Gauge
- Constriction Level: Mid-Range
- Constriction: .025"
- Diameter: .595"
- Fit / Thread Pattern: Winchoke, Standard Invector, Accu-Choke
- Material: 17-4 Heat-Treated Stainless Steel
- Style: Flush Mount
- Compatible Shot: Lead, Steel, Bismuth, Hevi-Shot
- Effective Range: 20 to 45 Yards
- Warranty: Carlson's Lifetime Warranty
- Country of Origin: Made in USA
What’s Included
- One Carlson's Bismuth Bone Buster 20 Gauge Mid-Range choke tube
- Choke wrench
Frequently Asked Questions
What shotguns does the 09224 Bone Buster fit?
This tube is cut for Winchoke, Standard Invector, and Accu-Choke threading, which covers a lot of 20 gauge Winchester, Browning, and Mossberg shotguns. If your gun uses one of those systems, it'll thread right in. When in doubt, check what your current factory tubes are marked as.
Can I shoot steel shot through the Mid-Range Bone Buster?
Yes, the Mid-Range constriction is rated for all steel shot in addition to lead, bismuth, and Hevi-Shot. That flexibility is a big part of why hunters like keeping this tube in the gun. Just keep in mind it's built for shot loads, not slugs or sabots.
Should I get the Mid-Range or the Extended Range Bone Buster?
The Mid-Range .025 is the do-everything choice, dialed in for roughly 20 to 45 yards, which is where most duck and goose shots happen. The Extended Range .040 tightens things up for longer 40 to 60 yard pass shooting. Most folks end up running the Mid-Range the majority of the time and only reach for the tighter tube on those stretched-out shots.
What makes the Bone Buster pattern better than a factory tube?
The main difference is the longer parallel section machined inside the choke, which lets the shot column settle before it leaves the barrel for a more even pattern. Carlson's also did extensive load testing around bismuth to fine-tune the design. Add the 17-4 stainless build and a lifetime warranty and you've got a tube meant to outlast your factory chokes.





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