Choke tube markings are a series of lines, notches, letters, or numbers that help identify the size of a choke tube. The letters LF are usually written on the outside walls of the choke tube, and it can be confusing if you haven’t seen it before.
LF stands for LIGHT FULL. It designates the choke tube constriction size and in this case LF is between Improved Modified and Full with regards to tightness. It measures 0.690” in diameter on fixed choke 12 gauges.
Light Full chokes are used for waterfowl and upland game hunting such as turkeys. They help provide more consistent and tight patterns at long ranges between 40 and 60 yards. If you see “LF” or “L. FULL” written on a choke tube, you can be sure it’s a Light Full choke.
What does LF mean on a choke tube?
Choke tube letters designate the diameter of a choke tube and LF is included in these designations. LF stands for Light Full Choke and is consider one of the tightest of all choke diameters.
Some chokes can be labeled as “L. Full” and this means Light Full as well. This designation is brand specific and isn’t related to the standard naming scheme. Light Full will be listed as LF, L. FULL, or Light Full. LF chokes should not be confused with Light Modified or Full choke tubes.
What is the diameter of Light Full chokes?
Light Full diameters differ based on shotgun brand and choke system. Below is a chart showing the diameter of LF chokes by brand.
| Type | LF Diameter (inch) |
| Beretta/Benelli Mobil | 0.691 |
| Benelli Crio | 0.692 |
| Beretta Optima Plus | 0.697 |
| Benelli Super Sport | 0.692 |
| Beretta Optima | 0.697 |
| Browning Invector | 0.692 |
| Invector Plus | 0.705 |
| Remington | 0.692 |
More Choke Tube Markings
There are over 30 different choke tube markings used for choke identification. Below are the most common markings. Please click the links below to see what each choke tube marking means.
What are LF choke tubes used for?
LF choke tubes pattern tighter at long ranges. They are ideal for shots on waterfowl and turkeys out to 60 yards. They work best with medium size steel and lead shot on fast flying birds that are hard to hit. They can also be used with most magnum turkey loads.
Light Full chokes aren’t a popular choke size for hunting as they are often overshadowed by full and extra full chokes. The long-range performance of light full chokes between 40 and 60 yards can be worth the investment though.
Are LF choke tubes open chokes?
LF choke tubes are not open chokes and are one of the tightest of all choke sizes available. LF chokes are tighter than Improved Modified, but more open than Full. They are considered a long-range choke tube and they are designed for turkey hunting and pass shooting ducks and geese. 60 yards is usually the max distance with steel shot with these chokes.
Light Full chokes excel with most ammo and shot types due to its tight diameter that keeps the shot column compact at extreme ranges. It can also be used with TSS shot which delivers devastating downrange patterns for waterfowl and turkeys.
Bottom Line: LF Means Light Full
LF stands for Light Full choke. It will be written on the side of the choke tube. Light Full chokes perform in between that of an Improved Modified and Full choke.
Light Full chokes are great for waterfowl and turkey hunting as the tight pattern is more effective at long ranges. They work especially well with magnum lead loads for shots to 60 yards.
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Related
- Complete Guide to Identifying Choke Tube Sizes
- Choke Tube Diameter and Constriction Table
- What do the numbers mean on a choke tube?
- Ultimate Guide to Shotgun Pellet Sizes
- What does 3 lines on a choke tube mean?
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