Manual

INSTALLATION OF SCREW-IN CHOKE INSERTS

Make sure the shotgun is unloaded! Either open the action or dismount the

barrel completely from the action assembly. Lightly coat the threads of both the

barrel and the desired choke insert with good quality gun oil. Carefully start the

choke insert into the barrel threads by hand, taking care that the choke insert is

not cross-threaded. Using the choke wrench (supplied), carefully hand-tighten

the choke insert into the barrel until it is tightly secured in the barrel, so that

the choke insert is fully bottomed into its recess in the barrel. Take note which

choke you are inserting into the barrel. The trap choke inserts are stamped

either “FULL” or “MODIFIED”. Remove the choke wrench from the barrel after

tightening.

CHOKE WRENCH

CHOKE INSERT

("TUBE")

34"

"CONTROLLED PATTERN"

BARREL

NOTE: Stainless Steel trap choke inserts may protrude slightly from muzzle

when fully seated. This is normal and helps protect the muzzle of the barrel

from damage.

To minimize the possibility of damage to the screw-in choke inserts and the

barrel threads, it is recommended that a choke insert be kept correctly tightened

into the barrel at all times, including storage and cleaning. Cleaning the barrel

without the choke insert in place can push dirt and other fouling into the barrel

threads, which will interfere with proper installation of the choke insert.

Be sure you only use the correct choke insert (tube). The screw-in choke inserts

for the newer Ruger “easy open” shotguns, including the Ruger Trap Model

shotgun, are stainless steel and stamped on the side either “FULL” or

“MODIFIED”. They are not interchangeable with the shorter, blued steel choke

tubes of older Ruger shotguns which have identification slots on their muzzle

end. A general rule of thumb is that if the choke tube screws in significantly

below flush with the muzzle, or if the choke sticks more than slightly out of the

muzzle when completely tightened, you are using the wrong choke tube!

Steel Shot — Steel shot loads manufactured to U.S. Industry Standards can be

used with Ruger Screw-in choke inserts with no special precautions other than

those listed above. (See “Ammunition” and “Steel Shot” instructions and

warnings, pp. 9 - 10).