Carlson's Choke Tubes 09225 Bismuth Bone Buster WinChoke, Browning Invector, Mossberg 500 20 Gauge Extended Range 17-4 Stainless SteelCARLSON'S$58.49
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CARLSON'S
The Carlson's 20 Gauge Bismuth Bone Buster choke tube is a mid-range constriction designed for shooters who want effective performance with bismuth shot in their 20-gauge shotgun. Built from 17-4 stainless steel, this choke delivers the durability you need for repeated use with bismuth's harder composition—a material that requires chokes engineered to handle its density and impact. Whether you're hunting waterfowl, upland game, or testing loads at the range, a mid-range choke balances pattern tightness and shot spread to cover the distance where most hunting happens.
Carlson's engineered the Bismuth Bone Buster specifically for bismuth ammunition, which is non-toxic and denser than lead. The 17-4 stainless steel construction resists corrosion and wear from the rigors of bismuth shot better than standard materials. This choke threads into WinChoke, Browning Invector, and Mossberg 500 platforms, making it a straightforward upgrade or backup tube for guns in common rotation.
If you're running bismuth to comply with regulations or by choice, using the right choke tube matters—it protects your barrel, improves pattern consistency, and makes your shot placement more predictable downrange. Keep a mid-range tube in your kit for the most versatile shooting scenarios.
| Gauge | 20 |
| Choke Type | Bismuth Bone Buster |
| Constriction | Mid-Range |
| Material | 17-4 Stainless Steel |
| Compatible Platforms | WinChoke, Browning Invector, Mossberg 500 |
This Carlson's choke is designed for shotguns with WinChoke, Browning Invector, or Mossberg 500 threading. Check your gun's documentation or test-fit the tube before use to confirm compatibility.
This choke is specifically engineered for bismuth shot. While you may be able to use it with lead, Carlson's designed the Bismuth Bone Buster for the unique properties of bismuth ammunition, so we recommend using it as intended.
Bismuth is denser and harder than lead shot, and standard chokes can wear or pattern inconsistently with it. Carlson's 17-4 stainless steel construction is built to handle bismuth's impact and density, protecting your barrel and maintaining reliable patterns.
A mid-range choke offers moderate constriction—it's tighter than an open choke but not as tight as a full choke. It delivers a balanced shot pattern suitable for most hunting distances and general shooting scenarios.
CARLSON'S
The Carlson's 20 Gauge Bismuth Bone Buster choke tube is a mid-range constriction designed for shooters who want effective performance with bismuth shot in their 20-gauge shotgun. Built from 17-4 stainless steel, this choke delivers the durability you need for repeated use with bismuth's harder composition—a material that requires chokes engineered to handle its density and impact. Whether you're hunting waterfowl, upland game, or testing loads at the range, a mid-range choke balances pattern tightness and shot spread to cover the distance where most hunting happens.
Carlson's engineered the Bismuth Bone Buster specifically for bismuth ammunition, which is non-toxic and denser than lead. The 17-4 stainless steel construction resists corrosion and wear from the rigors of bismuth shot better than standard materials. This choke threads into WinChoke, Browning Invector, and Mossberg 500 platforms, making it a straightforward upgrade or backup tube for guns in common rotation.
If you're running bismuth to comply with regulations or by choice, using the right choke tube matters—it protects your barrel, improves pattern consistency, and makes your shot placement more predictable downrange. Keep a mid-range tube in your kit for the most versatile shooting scenarios.
| Gauge | 20 |
| Choke Type | Bismuth Bone Buster |
| Constriction | Mid-Range |
| Material | 17-4 Stainless Steel |
| Compatible Platforms | WinChoke, Browning Invector, Mossberg 500 |
This Carlson's choke is designed for shotguns with WinChoke, Browning Invector, or Mossberg 500 threading. Check your gun's documentation or test-fit the tube before use to confirm compatibility.
This choke is specifically engineered for bismuth shot. While you may be able to use it with lead, Carlson's designed the Bismuth Bone Buster for the unique properties of bismuth ammunition, so we recommend using it as intended.
Bismuth is denser and harder than lead shot, and standard chokes can wear or pattern inconsistently with it. Carlson's 17-4 stainless steel construction is built to handle bismuth's impact and density, protecting your barrel and maintaining reliable patterns.
A mid-range choke offers moderate constriction—it's tighter than an open choke but not as tight as a full choke. It delivers a balanced shot pattern suitable for most hunting distances and general shooting scenarios.