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Bismuth has come roaring back as a smart middle ground between pricey tungsten and old-school lead, and Carlson's built the Bone Buster line specifically to help those loads reach their full potential. This 20 gauge extended range tube (part number 09215) fits Beretta, Benelli, and Franchi Mobil style barrels, and it's machined from 17-4 heat-treated stainless steel with a non-reflective matte black finish that shrugs off marsh weather and hard use.
The secret sauce here is the longer parallel section inside the tube paired with a tighter .040 extended range constriction. That combination squeezes bismuth shot into denser, more consistent patterns than you'll get from a factory choke or most aftermarket options. Carlson's has spent decades patterning tens of thousands of shells, and that testing data shows in how these tubes throw a payload downrange.
This choke is built for reach. It's designed to do its best work from 40 to 60 yards, which makes it a strong pick for pass-shooting ducks and geese or reaching out on late-season birds that hang up out of range. Beyond bismuth, it also handles lead and Hevi-Shot loads without issue. If you plan to run steel through it, keep the shot no larger than #2 and steer clear of steel loads faster than 1550 FPS. Skip slugs and sabots in this one entirely.
Every Bone Buster is made right here in the USA and backed by Carlson's lifetime warranty, so you can bury it in a blind bag season after season without babying it. As with any new choke, take it to the pattern board first with your go-to bismuth load to see exactly how your gun likes it. A few minutes on paper tells you everything about where to hold at distance.
This tube is cut for Beretta, Benelli, and Franchi Mobil style threading in 20 gauge, which also covers Benelli Standard and Franchi Standard systems. Always double check your barrel's choke pattern before ordering, since Benelli Crio and other systems use a different tube. If you're unsure, your owner's manual or a quick look at your barrel markings will confirm it.
Yes, but keep the steel shot at #2 or smaller and avoid steel loads running faster than 1550 FPS. The extended range constriction is really built to shine with bismuth, though it also handles lead and Hevi-Shot loads well. Slugs, sabots, and rifled slugs should never be used in this choke.
The extended range tube (this one) has a tighter .040 constriction and is built for reach, doing its best work from 40 to 60 yards. The mid range version uses a .025 constriction and is tuned for closer 20 to 45 yard shots. Pick the extended range if you're pass-shooting or reaching out on late-season birds.
Bismuth patterns best through tighter constrictions with a longer parallel section, which is exactly what the Bone Buster is designed around. Carlson's engineered these tubes after extensive patterning to squeeze denser, more even patterns out of bismuth than a factory choke typically delivers. That translates to more consistent downrange energy where it counts.
| UPC | 723189092153 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 09215 |
| Caliber/Gauge | 20 Gauge |
| Chokes Included | One Choke |
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