Gun Digest Book Of Rimfire Rifles Assembly/Disassembly

642 Pages·2016·71 MB·English

by  Muramatsu

4
STEP-BY-STEP GUIDE TO th GunDigest® Book of
TODAY’S HOTTEST RIMFIRES!
EDITION R I M F I R E
G RIFLES
Shooters, gunsmiths and collectors alike NEW MODELS IN THIS u
EDITION INCLUDE: n
will fi nd the revised version of this handy guide
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an essential reference for disassembling and - Anschutz MSR RX-22
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reassembling a variety of rimfi re rifl es. - Beretta ARX-160 og
- Chiappa M1-22 ke
Step-by-step photographs and clear, simple - Colt M4 Carbine .22 s
o ASSEMBLY/DISASSEMBLY
t
text make it easy to disassemble and reassemble - CZ-USA 512 f ®
- Excel Arms MR-22 Accelerator
a wide range of modern and vintage rimfi re rifl es. AR
- GSG StG-44
Plus, Kevin Muramatsu’s decades of gunsmithing S
- IWI Uzi
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experience shine through in practical reassembly
- Mossberg Blaze EM
tips that help you overcome specifi c - Ruger American Rimfi re M
reassemblyy hurdles - Savage A17 B
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ABOUT THE AUTHOR
STEP-BY-STEP
An experienced gunsmith and popular writer, Kevin Muramatsu has authored numerous books for
Gun Digest, including Gun Digest Guide to Customizing Your AR-15, Exploded Gun Drawings and Gun PHOTOS FOR 86
Digest Guide to Maintaining and Accessorizing Firearms, as well as Assembly/Disassembly titles for M
pistols, centerfi re rifl es, tactical weapons and shotguns. Kevin lives in the Twin Cities area with his U MODELS AND
R
wife, three children, and not enough guns.
A
M MORE THAN
A
US $35.99
S5432 (CAN $44.99) TS 200 VARIANTS
ISBN-13: 978-1-4402-4584-8 U
ISBN-10: 1-4402-4584-3
53599
Gun Digest® Books
N
A
C E Kevin Muramatsu
P An imprint of F+W Media, Inc.
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RRIIMMFFIIRREE
GunDigest® Book of
RRIIFFLLEESS
ASSEMBLY/DISASSEMBLY
Step-By-Step Photos and Instructions
for Hundreds of Variants
4th
Kevin Muramatsu
EDITION
Related titles from Gun Digest Books
Gun Digest Guide to Maintaining & Accessorizing Firearms
Gun Digest Guide to Customizing Your AR-15
Gun Digest Book of .22 Rimfi re 2nd Edition
Customize the Ruger 10/22 2nd Edition
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ISBN-13: 978-1-4402-4584-8
ISBN-10: 1-4402-4584-3
Cover Design by Tom Nelsen
Designed by Rebecca Vogel
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Printed in the United States of America
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Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Mossberg 702 . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Dedication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Puma PPS22 . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 6 Remington Model 121A . . . . . . . . . . . . . . . . . . 331
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Remington Model 341P . . . . . . . . . . . . . . . . . . 340
Anschutz MSR RX22 . . . . . . . . . . . . . . . . . . . . . 12 Remington Model 522. . . . . . . . . . . . . . . . . . . . 347
Beretta ARX-160. . . . . . . . . . . . . . . . . . . . . . . . . 20 Remington Model 550. . . . . . . . . . . . . . . . . . . . 353
BRNO Model ZKM 452 . . . . . . . . . . . . . . . . . . . 26 Remington Model 552. . . . . . . . . . . . . . . . . . . . 358
Browning A-Bolt 22 . . . . . . . . . . . . . . . . . . . . . . 32 Remington Model 581. . . . . . . . . . . . . . . . . . . . 366
Browning Model BL-22 . . . . . . . . . . . . . . . . . . . 42 Remington Model 597. . . . . . . . . . . . . . . . . . . . 371
Browning Semi-Auto 22 . . . . . . . . . . . . . . . . . . . 52 Remington No. 4. . . . . . . . . . . . . . . . . . . . . . . . 380
Browning T-Bolt . . . . . . . . . . . . . . . . . . . . . . . . . 59 Remington Nylon 66. . . . . . . . . . . . . . . . . . . . . 385
Calico M-100 . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Ruger American Rimfi re . . . . . . . . . . . . . . . . . . 395
Charter AR-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Ruger 10/22. . . . . . . . . . . . . . . . . . . . . . . . . . . . 401
Chiappa Little Badger. . . . . . . . . . . . . . . . . . . . . 85 Ruger Model 77/22 . . . . . . . . . . . . . . . . . . . . . . 408
Chiappa M1-22 . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Ruger Model 96/22 . . . . . . . . . . . . . . . . . . . . . . 415
Chipmunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Savage/Anschutz Model 54. . . . . . . . . . . . . . . . 425
Colt M4 Carbine .22 . . . . . . . . . . . . . . . . . . . . . . 99 Savage A17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431
Cooper 57M Jackson Squirrel Rifl e . . . . . . . . . 106 Savage B.Mag . . . . . . . . . . . . . . . . . . . . . . . . . . 436
CZ Model 511 . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Savage Model 63. . . . . . . . . . . . . . . . . . . . . . . . 442
CZ Model 512 . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Savage Model 64F. . . . . . . . . . . . . . . . . . . . . . . 448
Excel Arms MR-22 Accelerator . . . . . . . . . . . . 121 Savage Model 72. . . . . . . . . . . . . . . . . . . . . . . . 455
Feather AT-22 . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Savage Mark II . . . . . . . . . . . . . . . . . . . . . . . . . 461
German Sport Guns ATI GSG-5. . . . . . . . . . . . . 137 Sears Model 25 . . . . . . . . . . . . . . . . . . . . . . . . . 466
German Sport Guns GSG StG 44 . . . . . . . . . . . 150 Sears Model 31 . . . . . . . . . . . . . . . . . . . . . . . . . 473
Grendel R-31. . . . . . . . . . . . . . . . . . . . . . . . . . . 157 SIG 522 Classic. . . . . . . . . . . . . . . . . . . . . . . . . 479
Harrington & Richardson Model 700 . . . . . . . . 170 Smith & Wesson M&P 15-22 . . . . . . . . . . . . . . 485
Harrington & Richardson Model 750 . . . . . . . . 178 Stevens Favorite. . . . . . . . . . . . . . . . . . . . . . . . . 490
Heckler & Koch G36. . . . . . . . . . . . . . . . . . . . . 184 Stevens-Springfi eld Model 53A . . . . . . . . . . . . 495
Henry Golden Boy . . . . . . . . . . . . . . . . . . . . . . 189 Taurus Model 63. . . . . . . . . . . . . . . . . . . . . . . . 500
ISSC Austria SPA . . . . . . . . . . . . . . . . . . . . . . . 200 Thompson/Center Classic. . . . . . . . . . . . . . . . . 507
Israel Weapon Industries (IWI) Uzi . . . . . . . . . . 207 Thompson/Center Hotshot . . . . . . . . . . . . . . . . 513
Ithaca Model 49. . . . . . . . . . . . . . . . . . . . . . . . . 213 U.S. Springfi eld Model 1922 M2 . . . . . . . . . . . 519
Kel-Tec SU-22 . . . . . . . . . . . . . . . . . . . . . . . . . . 218 Walther G22 . . . . . . . . . . . . . . . . . . . . . . . . . . . 527
Kimber Model 82 . . . . . . . . . . . . . . . . . . . . . . . 227 Weatherby Mark XXII. . . . . . . . . . . . . . . . . . . . 541
Marlin Model 39A. . . . . . . . . . . . . . . . . . . . . . . 236 Winchester Low Wall . . . . . . . . . . . . . . . . . . . . 547
Marlin Model 57. . . . . . . . . . . . . . . . . . . . . . . . 243 Winchester Wildcat . . . . . . . . . . . . . . . . . . . . . . 555
Marlin Model 80. . . . . . . . . . . . . . . . . . . . . . . . 253 Winchester Model 61 . . . . . . . . . . . . . . . . . . . . 567
Marlin Model 99M1 . . . . . . . . . . . . . . . . . . . . . 259 Winchester Model 63 . . . . . . . . . . . . . . . . . . . . 575
Marlin Model 782. . . . . . . . . . . . . . . . . . . . . . . 264 Winchester Model 67A. . . . . . . . . . . . . . . . . . . 586
Marlin Model 983T . . . . . . . . . . . . . . . . . . . . . . 270 Winchester Model 69 . . . . . . . . . . . . . . . . . . . . 591
Mitchell AK-22. . . . . . . . . . . . . . . . . . . . . . . . . 281 Winchester Model 74 . . . . . . . . . . . . . . . . . . . . 599
Mosserberg Blaze . . . . . . . . . . . . . . . . . . . . . . . 293 Winchester Model 77 . . . . . . . . . . . . . . . . . . . . 607
Mossberg Model 44US . . . . . . . . . . . . . . . . . . . 298 Winchester Model 90 . . . . . . . . . . . . . . . . . . . . 615
Mossberg Model 151M. . . . . . . . . . . . . . . . . . . 303 Winchester Model 190 . . . . . . . . . . . . . . . . . . . 623
Mossberg 640K. . . . . . . . . . . . . . . . . . . . . . . . . 310 Winchester Model 9422 . . . . . . . . . . . . . . . . . . 630
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4 : Introduction
Introduction
Term: Brown-bag special applicable. Otherwise, the items detailed in the Tools
section in the beginning of this book should suffi ce for
Defi nition: Th e completely and totally disassembled gun any of the rifl es detailed in this guide. Th ere are four
in a bag that a customer or buddy brings to you to put back tools that are the most useful and I would like to touch
together because said customer or buddy just “couldn’t stop on those here.
there.” Usually the brown-bag special is missing one or more Th e fi rst and most useful is a functioning brain.
key components, and often has unrelated parts in it that “Guns are always loaded” is the maxim and I can
were found on the fl oor adjacent to parts originating from confi rm that removing any distractions, particularly
the disassembled fi rearm. when unloading or checking the load status, can be
Th e brown bag special is one of the reasons for this critical. Otherwise the operation can result in holes
book’s existence. Gunsmiths around the country buy in things that shouldn’t have them. A gun’s primary
these books for a reason, sometimes just to add to the safety is your well-functioning head, because if that isn’t
library (you can never have too many resources in your working, you shouldn’t be anywhere near a fi rearm. Or
gun library). Of course, you don’t have to be a gunsmith me. Triple-check that the fi rearm is unloaded, especially
to make use of this book and it is quite handy for the for fi rearms with detachable magazines. Too often,
average dude who simply wants to detail clean or just people remove a loaded magazine and forget that there
to learn more about how his fi rearm works. is still a live cartridge in the chamber. Stick your fi nger
Okay, straight to business, now. As useful as a book in the chamber, in addition to a visual check. If the bolt
like this is, it is simply impossible to present perfect slams shut on your digit, you’ve a pretty good indication
images of every step, from the best angle, through that the check was successful. It’s really a treat when
invisible fi ngers, palms, and receiver walls. Th ere may it happens with a bolt or other manual action. Please
come times where it is necessary for the user to read don’t ask me how I know this.
between the lines, or create simple mental images of Th e second tool is the digital camera. Its value cannot
the description. For example, we may instruct you to be overstated. Taking what are essentially free pictures
remove the four action screws from a rifl e, but the whenever you feel the need will make disassembly and
picture shows and indicates only one or two, since the reassembly much more practical. Th is is not to mention
other two or three happen to be in similarly obvious the proof you will have when you tell the customer that
locations on the gun. Or a decent image is simply you found a bunch of grass, or a key (yes, that really has
impossible to capture so we point out what needs to be happened) in his receiver and he meets that statement
done and the eff ect that it will have. For example: “Th is with profound skepticism. It isn’t unusual when
receiver is narrow enough to preclude a good internal compiling these books to discard half again as many
image. Drive out this pin and this will happen. Drive pictures that were, in the end, used.
out that pin and that will happen. Catch the twelve and Th e third tool is the internet. In the 21st century we
a half springs that drop free when you do.” You will have access to a tremendous amount of information,
fi nd that parts schematics will be of immense help in because it seems that everybody wants everybody else
these instances. to know what they are doing and how they are doing
Th e truth is that most gunsmithing or takedown it. You will fi nd everything from idiocy to priceless
tasks can be accomplished with a handful of useful wisdom, so you will have to fi lter it out. But when you
tools. Many guns require special tools to do this fi nd that schematic you couldn’t fi nd elsewhere you will
and that, and such will be noted in the text, when be thankful indeed for the information superhighway.
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Introduction : 5
Th e fourth tool is the third hand. Every gunsmith the same gun. It’s also interesting to note that, of late,
needs one, but alas, not a single one possesses it. So we many replicas of popular centerfi re rifl es such as the
make do with a heavy, sturdy bench vise with M4 or Uzi have emerged, and several such examples
padded jaws. are included in this revision. Furthermore, as traditional
A few more suggestions. Don’t work on guns in thick rifl e sales have given way to “black” rifl e and concealed
carpet or outside, since you will drop parts. Always carry pistol sales, manufacturers have had to reimagine
wear safety glasses, since your eyes are way, way more how to make a quality and eff ective rifl e at a cheaper
important than your comfort. Read the fi rearms’ user cost, i.e. below $400. Th e result is the use of some
manuals. I know this is a tall order for the American interesting technologies and design trends that result in
male (any American honestly), but please do it. Finally, such guns as the Ruger American and Savage B.Mag.
brute force is the enemy. If it doesn’t come out with Limited space requires new additions to displace
a light tap, there is probably a good reason. Like a set older models, so please don’t be off ended if the
screw. Or you are trying to tap it out the wrong way. takedown you are looking for is not found here. Th ere
“Hit it harder” and “get a bigger hammer” generally are a number of older editions available online and you
aren’t mantras to live by when working on a fi rearm. can also contact the publisher for pdf copies of older
Check out the index in the back if you don’t see the chapters. Lastly, space also precludes the inclusion of
gun you are looking for. Some models are similar or the oh-so-useful schematics. Many or all of these can
identical to others, and generally the steps to take down be found in the huge Gun Digest Book of Exploded
the basic model of rifl e are going to be the same for Gun Drawings.
the more enhanced target/tactical/deluxe versions of
Kevin Muramatsu
Sleep deprived, yet caff eine supplied
White Bear Township, Minnesota
October 2015
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6 : Dedication
Dedication
As I fi nished up this revised edition on October 25th (yes, the manuscript deadline date), I took a break and looked up
events that happened on this day in history. One remarkable occasion stood out.
On the morning of October 25th, 1944, occurred what is known as the Battle at Samar. Th is was an adjunct
engagement of the rather larger Battle of Leyte Gulf when (the insuff erable buff oon) General MacArthur “returned” to
the Philippines. Without going into too much detail, because I’d like the readers to look it up, this engagement was one
of the most lopsided in naval history yet had a surprisingly lopsided result in turn. For those with short attention spans,
Wikipedia has a surprisingly concise account. Th ere are better resources written by many that were present, and these
accounts tell the whole story. Anyway, in a nutshell, a powerful fl eet of IJN surface warfare ships, four battleships, eight
cruisers, and eleven destroyers got into shooting range of a much smaller USN task force composed of six escort carriers,
three destroyers and four destroyer escorts.
Needless to say, the USN was in as poor a set up as can be imagined, yet the destroyers and escorts plunged head fi rst
into a surface engagement that was tactically hopeless, in order to buy time for the six small carriers to escape. In theory,
the IJN had all the advantages, yet they lost the battle, being turned away in frustration (their target was the invasion
force at Leyte), largely due to the boldness of the attacking escorts and aircraft from the carriers and the mass confusion that
erupted in what amounted to a massive melee at short ranges. In the end, we lost “only” two escort carriers, two destroyers,
and one destroyer escort.
Of particular interest to me was the account of the destroyer USS Johnston and its CO, and of the destroyer escort
Samuel B. Roberts. Th e Johnston was eventually lost after suff ering tremendous damage and casualties, with Commander
Evans receiving the Medal of Honor, posthumously. Th e Roberts was also lost after infl icting far disproportionate amounts
of damage to the Japanese.
Here’s the point. A lot more Americans would have died had not the escorts of Taff y 3 boldly charged into the far larger
and more numerous guns of the Japanese battleships. Th ese actions and others similarly performed yet uncounted ensure the
freedom we all take for granted. Th e actions continue to be performed today.
I’ll give you one guess to whom this revised edition is dedicated.
Acknowledgements
As with the last of these books that I revised, I pretty much did and obtained everything myself. So I guess I’m
left with thanking Gun Digest for the job of making these revisions and putting my name and mug on the covers.
I suppose I should thank the several gun distributors for making sure they had what I needed in stock. Now if
only they could produce a PMR-30.
Oh, and thanks, Corrina, for not fi ring me.
A Note on Reassembly
Most of the rifl es covered in this book can be reassembled by simply reversing the order of disassembly, carefully
replacing the parts in the same manner they were removed. In a few instances, special instruction are required, and
these are listed with each gun under “Reassembly Tips.” In certain cases, reassembly photos are also provided.
If there are no special instructions or photos with a particular gun, you may assume that it can just be
reassembled in reverse order. During disassembly, note the relationship of all parts and springs, take digital photos
of the installed arrangements, and lay them out on the workbench in the order they were removed. By following
this procedure, and referring to your own digital images, you should have no diffi culty.
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Tools : 7
S
L
O
O
T
Countless fi rearms, old and new, bear the marks, burrs and gouges that are the result of
using the wrong tools for taking them apart. In the interest of preventing this sort of thing,
I am including here a group of tools that are the best types for the disassembly of rifl es.
Except for the few shop-made tools for special purposes, all of those shown here are
available from one of these three sources.
Brownells, Inc. B-Square Company Williams Gun Sight Company
200 South Front Street P.O. Box 11281 7389 Lapeer Road
Montezuma, IA 50171 Fort Worth, TX 76109 Davison, MI 48423
General Instructions:
Screwdrivers: Always be sure the blade of the screwdriver together during reassembly. The slave pin must be very
exactly fi ts the slot in the screw head, both in thickness slightly smaller in diameter than the hole in the part, so it
and in width. If you don’t have one that fi ts, grind or fi le will push out easily as the original pin is driven in to retain
the top until it does. You may ruin a few screwdrivers but the part. When making the slave pin, its length should
better them than the screws on a fi ne rifl e. be slightly less than the width of the part in which it is
being used, and the ends of the pin should be rounded
Slave pins: There are several references in this book to
or beveled.
slave pins, and some non-gunsmith readers may not be
familiar with the term. A slave pin is simply a short length Sights: Nearly all dovetail-mounted sights are drifted
of rod stock (in some cases, a section of a nail will do) out toward the right, using a nylon, aluminum, or brass
which is used to keep two parts, or a part and a spring, drift punch.
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8 : Tools
1. The tiniest of these fi ne German instrument 4. For heavier gripping, these Bernard parallel-jaw pli-
screwdrivers from Brownells is too small for most ers from Brownells have smooth-faced jaw-pieces
gun work, but you’ll see the rest of them used of unhardened steel to prevent marring of parts.
frequently throughout the book. There are many
tight places where these will come in handy.
5. For situations where a non-marring rap is needed,
this hammer from Brownells is ideal. It is shown
with nylon faces on the head, but other faces of
2. When a larger screwdriver is needed, this set from plastic and brass are also available. All are easily
Brownells covers a wide range of blade sizes and replaceable.
also has Phillips- and Allen-type inserts. The tips
are held in place by a strong magnet, yet are easily
changed. These tips are very hard. With enough
force you might manage to break one, but they’ll
never bend.
6. For drifting out pins, these small all-metal
hammers from B-Square are the best I’ve seen.
3. You should have at least one good pair of bent
Two sizes (weights) are available and they’re well
sharp-nosed pliers. These, from Brownells, have a
worth the modest cost.
box joint and smooth inner faces to help prevent
marring.
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Tools : 9
7. For situations where reach and accessibility are
beyond the capabilities of sharp-nosed pliers, a
pair of large sharp-nosed forceps (tweezers) will be
invaluable.
8. One of the most-used tools in my shop is this nylon 10. These punches by Mayhew are designed
tipped drift punch, shown with an optional brass specifi cally for roll pins and have a projection at
tip in place on the handle. It has a steel pin inside the center of the tip to fi t the hollow center of a
the nylon tip for strength. From Brownells, and roll pin, driving it out without deformation of the
absolutely essential. ends. From Brownells.
9. A good set of drift punches will prevent a lot of
marred pins. These, from Brownells, are made by
Mayhew. The tapered punches at the right are for
11. Some of the necessary tools are easily made in
starting pins, the others for pushing them through.
the shop. These non-marring drift punches were
Two sizes are available-4 inches or 6 inches.
made from three sizes of welder’s brazing rod.
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