precision patterns for every Shot. Carlson's introduces their innovative new Bismuth bone buster Choke Tubes, meticulously crafted to achieve exceptional and concentrated patterns when paired with Bismuth ammunition. These Choke Tubes are engineered with CNC precision machining using 17-4 heat treated stainless steel, boasting an extended parallel section within the Choke that outperforms standard factory chokes. After undergoing rigorous testing with a diverse range of loads, these chokes are guaranteed to deliver unparalleled results with Bismuth, ensuring devastating patterns. You have the choice between the mid range option with a .025 constriction and the extended range version with a .035 constriction, providing versatility and compatibility with lead and Hevi-Shot loads. The mid range variant accommodates all steel shot types, while the extended range version is suitable for steel shots up to size #2. Experience the remarkable power of the new Bismuth Choke Tubes, delivering bone crushing density in patterns, all fully backed by Carlson's lifetime warranty for your peace of mind.

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