Discover Carlson's innovative new Bismuth bone buster Choke Tubes, meticulously engineered for peak performance when using Bismuth ammunition. These tubes are the result of precise CNC machining from 17-4 heat treated stainless steel, featuring an extended parallel section inside the Choke that surpasses conventional factory options. Extensively tested across a spectrum of loads, these chokes guarantee exceptional patterns when paired with Bismuth ammunition, delivering devastating results every time. Whether you choose the mid range (with a .025 constriction) or the extended range (with a .040 constriction), these versatile chokes seamlessly accommodate both lead and Hevi-Shot loads. The mid range model is compatible with all steel shot types, while the extended range version supports steel shots up to size #2. Elevate your shooting experience with the unparalleled dense patterns provided by these cutting edge Bismuth Choke Tubes, all backed by Carlson's enduring lifetime Warranty.

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