Manual

3. Use the Invector-Plus wrench to loosen the choke

tube, turning it counterclockwise. Unscrew the

choke tube the rest of the way out of the barrel with

your fingers.

CHOKE TUBE INSTALLATION —

1. COMPLETELY UNLOAD YOUR SHOTGUN. INSPECT THE

CHAMBER, FEED MECHANISM AND MAGAZINE TO

MAKE SURE THEY DO NOT CONTAIN ANY SHELLS.

2. Open the action, locking it rearward, and place the

safety in the “on safe” position.

3. 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 choke tube’s threads with a high

quality lightweight oil.

4. 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 TUBE SHOULD BE

PERIODICALLY CHECKED TO ASSURE THAT IT IS

TIGHT AND FIRMLY SEATED. BEFORE CHECKING,

FOLLOW THE SAFETY GUIDELINES OUTLINED ABOVE.

SELECTING THE CORRECT INVECTOR-PLUS

CHOKE TUBE —

The Invector-Plus choke system is fully compatible with

factory lead or steel shot loads. The conversion chart

includes both lead and steel shot information. Lead and

steel shot perform differently in tubes with the same

choke constriction. For this reason, both lead and steel

designations are provided. Larger steel shot diameters also

result in different patterns than smaller steel shot sizes.

Each designation is inscribed on each choke tube. To help

you choose the correct choke tube for each target

shooting and hunting situation, all Invector-Plus choke

tubes are inscribed on the side with abbreviations for the

patterns they produce with both lead and steel shot. Each

tube also features identification notches located on the

top rim of each tube (Figure 11). These notches are a

code to allow you to determine the choke designation

while the tube is installed. Rim notches refer specifically

to lead shot. Use the chart on page 19 to cross-reference

from lead to steel, and determine the appropriate tubes for

your ammunition and hunting/shooting situation.

It is helpful to note that bismuth shot patterns similarly to

lead shot and tungsten shot patterns more like steel shot.