What are the inside diameter dimensions of the Winchester Invector-Plus Choke Tubes?
The following measurements are the inside diameter with a +/- of .002.
| 12 Gauge | |
| Extra Full | .700 |
| Full | .705 |
| Light Full | .710 |
| Improved Modified | .715 |
| Modified | .720 |
| Light Modified | .725 |
| Improved Cylinder | .730 |
| Skeet | .735 |
| Cylinder | .740 |
| 20 Gauge | |
| Full | .606 |
| Improved Modified | .612 |
| Modified | .615 |
| Improved Cylinder | .621 |
| Skeet | .624 |
| Cylinder | .630 |