The choke tube table above shows the diameters and constrictions you can expect for choke tubes and shotgun barrels for Retay 12-gauge shotguns compared to common fixed choke shotgun gauges. Retay shotguns have the Retay choke system and aren’t compatible with other choke systems or shotguns.
Knowing the diameter of a choke tube is important in order to identify choke tube constriction. The tighter the choke tube, the more constriction it has and the less constriction, the more open a choke will be.
Choke sizes are classified by both their measurement (to a thousandth of an inch) and by a special naming system. Choke measurements range from open chokes of around 0.725″ to 0.770″, to more restrictive chokes of around 0.600″ to 0.690″. Choke tubes are also classified by a naming structure that includes (from open to tight) cylinder, skeet, improved skeet, improved cylinder, light modified, modified, improved modified, light full, full, extra full, and turkey.
For choke sizes of other gauges and brands, see this chart.
Retay Choke Size Chart
| Choke Size | Diameter (in) |
|---|---|
| Cylinder | 0.725 |
| Skeet | 0.720 |
| Improved Cylinder | 0.715 |
| Light Modified | 0.710 |
| Modified | 0.705 |
| Improved Modified | 0.700 |
| Full | 0.695 |
| Extra Full | 0.690 |
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Last update on 2025-09-07 / Affiliate links / Product Images from Amazon Product Advertising API