Conventionally Choked Barrels

If you have a BT-99 with a conventionally choked barrel it is also easy to determine choke constriction. Constriction of conventionally choked barrels is shown with a neat, clearly defined mark found at the chamber end of the barrel, on the left side surface of the polished barrel lug. The coding is as follows:

MARKING ON LEFT BARREL LUG OF A AMOUNT CONVENTIONALLY CHOKED BARREL OF CHOKE

*

Full Choke

*-

Improved Modified

**

Modified

To determine the choke of an Invector tube see the section titled "Invector-Plus™ Choke Tube System" above.

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