The Carlson’s Bismuth Bone Buster Extended Range choke tube is engineered for shooters who require consistent, dense patterns with non-toxic shot. CNC-machined from heat-treated 17-4 stainless steel, it features an extended parallel section for improved pattern control compared with standard factory chokes. The choke is optimized for use with bismuth shot and is also compatible with lead and Hevi-Shot; the extended-range design can be used with steel shot not larger than 2.
Key Specifications
- The product is supplied as One Choke.
- The configuration is Invector.
- The material is 17-4 Stainless Steel.
- The caliber/gauge is 20 Gauge.
- The constriction diameter is .040.
- The constriction type is Extended Range.
- The choke is CNC precision machined and heat treated for consistency and durability, marked as heat treated 17-4 stainless.
- Optimized for Bismuth shot and tested with multiple loads for dense pattern performance.
- Compatible with lead and Hevi-Shot as stated by the manufacturer.
- Extended-range design may be used with steel shot up to 2.
This choke tube provides a reliable option for waterfowlers and sporting shooters seeking tight, consistent patterns with non-toxic shot loads. Its extended parallel section and durable 17-4 stainless construction make it a practical choice for regular use in the field or during clays sessions where optimized patterning with bismuth or compliant steel loads is required.
