Winchester Repeating Arms X Pump (SXP) User Manual

Page 23

All Super X Pump shotgun barrels (except Defender

models) are threaded to accept the Invector-Plus

™

choke

tube system. WinChoke

, Standard Invector

™

and

Invector-Plus tubes are not interchangeable. Confirm the

choke system of your shotgun by looking on the right side

of the barrel where the specifications are inscribed, where

the choke markings are normally located.
The constriction of each choke tube is indicated twice on

the choke tube: on the side of the tube, and indicated

with a notch code on the top rim of the tube. The

included universal choke tube wrench is used to remove

and install choke tubes.
Invector-Plus and Standard Invector choke tubes are

compatible with factory ammunition that has been

loaded in compliance with SAAMI specifications,

including magnum lead and steel shot loads, sabots and

shotgun slug loads.
Replacement and additional tubes and wrenches are

available from your Winchester Rifle and Shotguns

dealer, or by contacting the Winchester Repeating

Arms Customer Service Department. See page 30

for contact information.

hoke

ube

election

To help you choose the correct choke tube for each

hunting and shooting situation, all Invector-Plus choke

tubes are inscribed on the side with the patterns they

produce with both lead and steel shot. Each Invector tube

also has notches in the top rim of the tube (Figure 11).

N o N ot c h e s

F i v e N ot c h e s

F o u r N ot c h e s

t h r e e N ot c h e s

t w o N ot c h e s

o N e N ot c h

r i m

N ot c h e s

Pat t e r N w i t h

L e a d s h ot

Pat t e r N w i t h

s t e e L s h ot

e x t e N d e d * *

x - F u L L t u r k e y

* *

F u L L

i i

i m P. m o d i F i e d

F u L L

i i i

m o d i F i e d

F u L L

i i i i

i m P. c y L i N d e r

m o d i F i e d

i i i i i

s k e e t

i m P. c y L i N d e r

N o N ot c h e s

c y L i N d e r

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

Extra Full Special, extended with ports. Do not use with steel shot.

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

FIGURE 11