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Bismuth has quietly become one of the best answers for waterfowl and upland hunters who want the punch of denser shot without the price tag of tungsten. Carlson's built the Bismuth Bone Buster specifically to get the most out of those loads, and this 09217 model is cut for the Benelli Crio and Crio Plus 20 gauge platform in an extended range .040 constriction.
The secret here is the geometry. A longer parallel section inside the tube gives the shot column more time to settle before it leaves the muzzle, which translates to tighter, more even patterns at distance. Carlson's machines each tube from 17-4 heat treated stainless steel, so it stands up to the corrosion and wear that comes with duck blinds, marshes, and long seasons. The company has spent decades running thousands of load-and-choke combinations through their pattern testing, and that legwork is baked into how this choke performs with bismuth specifically.
While it's tuned around bismuth, this choke is not a one-trick pony. It handles all lead and Hevi-Shot loads without issue, and the extended range version will run steel shot as long as you stay at size #2 or smaller. That flexibility makes it a practical tube to leave screwed in for a mixed bag day where you might be swinging on decoying ducks one minute and pass-shooting the next.
This tube is threaded for the Benelli Crio and Crio Plus system, so double-check that your barrel uses that pattern before ordering. It runs roughly a .590 bore diameter in the 20 gauge extended range spec. Carlson's backs the whole line with a lifetime warranty and builds every tube in the USA, so if anything ever happens to it, they'll take care of you. For a hunter who's already spending good money on quality bismuth shells, matching them to a choke designed around that shot just makes sense.
This 09217 tube is threaded for the Benelli Crio and Crio Plus 20 gauge system. Before ordering, confirm your barrel uses that thread pattern rather than the older Beretta/Benelli Mobil style. If your shotgun says Crio or Crio Plus on the barrel or in the manual, this is the right tube.
It's tuned for bismuth, but it's not limited to it. You can run all lead and Hevi-Shot loads through it with no problem. In this extended range version, steel shot is fine as long as you keep it to size #2 or smaller.
Extended range refers to a .040 constriction, which tightens your pattern for longer shots on ducks and geese. Combined with the longer parallel section inside the tube, it holds the shot column together for denser, more consistent coverage downrange. If you want a more open pattern for closer decoying birds, the mid-range .025 version is the alternative.
It's machined from 17-4 heat treated stainless steel, which resists corrosion and the abuse that comes with wet, muddy hunting conditions. Carlson's builds every tube in the USA and backs the line with a lifetime warranty. If it ever gets damaged, you can send it back for a replacement.
| UPC | 723189092177 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 09217 |
| Caliber/Gauge | 20 Gauge |
| Chokes Included | One Choke |
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