Choke tube rim notch codes and patterns

Notches

Pattern With Lead Shot

Pattern With Steel Shot

Knurled"

X-Full Turkey

**

I

Full

*

II

Imp. Modified

Full1

III

Modified

Full1

IIII

Imp. Cylinder

Modified

IIIII

Skeet

Imp. Cylinder

No Notches

Cylinder

Cylinder

* Not for use with steel shot. Using an over-tight choke constriction with steel shot will result in an ineffective "blown" pattern.

** Extra Full Turkey with knurled rim. Do not use with steel shot.

1 When more than one choke designation is listed for a given steel shot pattern, use the more open choke listed for high velocity, larger shot size steel loads.

1. Open the action fully downward, and place the safety in the "on safe" position.

2. Before installing a tube, check the internal choke tube threads in the muzzle, as well as the threads on the Invector-Plus choke tube to be sure they are clean. Lightly oil the threads with a high quality, lightweight oil.

3. Using your fingers, screw the appropriate tube into the muzzle end of the barrel, tapered end first, notched end outward. When it becomes finger tight, use the Invector-Plus choke tube wrench to firmly seat the tube.

THE INVECTOR-PLUS CHOKE TUBES SHOULD BE PERIODICALLY CHECKED TO ASSURE THAT THEY ARE TIGHT AND FIRMLY SEATED. BEFORE CHECKING, FOLLOW THE SAFETY GUIDELINES OUTLINED ABOVE.

+1 0

Post a comment