Choke Specifications
| GA. | BORE DIA. | FULL | IMP MOD | MOD | LHT MOD | SKT #2 | IMP CYL | SKT #1 | CYL |
| 10 | .775 | .035 | .025 | .017 | .007 | ||||
| 12 | .730 | .035 | .025 | .019 | .016 | .012 | .009 | .005 | .000 |
| 16 | .670 | .028 | .020 | .015 | .013 | .010 | .007 | .004 | .000 |
| 20 | .620 | .025 | .019 | .014 | .012 | .009 | .006 | .004 | .000 |
| 28 | .550 | .022 | .016 | .012 | .010 | .007 | .005 | .003 | .000 |
| 410 | .410 | .018 | .013 | .008 | .006 | .005 | .004 | .003 | .000 |