American Rifleman - May 2010 - (Page 70)

TECHNICAL DOPE BAG CHIAPPA 1911-22 .22 LR PISTOL A recent addition to the rather short list of .22-cal. M1911s is the 1911-22 from Chiappa Firearms of Dayton, Ohio. All the components of the Chiappa guns are made in Italy by Armi Chiappa or in the United States. The 1911-22 is a straight blowback pistol in .22 Long Ri e only, with a xed barrel solidly attached to the frame. Major parts of the pistol, including the slide, frame, and some internals, are made of Chiapalloy, a proprietary zincbased alloy that is durable, easily machined and readily blackened by an electrolytic process that produces a more durable blue-black nish than the painted nishes often used on zinc alloys. Although steel is used in several critical areas, the pistol’s barrel, for example, is composed of an alloy shroud surrounding a steel liner button-ri ed in a six-groove, 1:16" right-hand twist. Steel is also used for the ring pin, as well as the massive spring-loaded claw extractor set into the right side of the slide. Although guns of current AY manufacture feature Chiapalloy trigger components, these will be phased out in favor of a new steel trigger set. Polymer is used for the magazine catch, mainspring housing, non-rotating grip safety ller, and the body and follower of the 10-round single-column magazine. Witness holes index the number of loaded cartridges. The magazine also has a unique feature: a raised tab on its right rear corner that serves as the gun’s ejector. This combination of materials seems to work quite well, with test guns reportedly ring more than 25,000 rounds with no breakages. The Chiappa’s light recoil spring, with a rate of about 5 lbs., makes slide retraction extremely easy, enabling persons of even limited strength to use the pistol. But that spring weight can also allow the ring-hand thumb to induce a malfunction if it is allowed to drag against the slide during ring. Safety features include the traditional left-side thumb safety and a gun lock on the right rear side of the slide. A third safety feature is the gun’s automatic trigger safety, which blocks the trigger until the slide is fully forward into battery. Finally, the hammer features a halfcock notch. The initial version of this pistol to hit dealers’ shelves was the Standard Model with xed sights and a standard trigger set, soon to be followed by a Target Model with adjustable sights, and a Tactical Model with no-snag xed sights and a threaded muzzle. The Standard Model we received for testing gave us a number of surprises. The rst was how closely the pistol resembled the appearance, feel and heft of its center- re cousin. The rim re retained the thumb safety, slide release and magazine catch of the original, omitting only the pivoting grip safety. Also surprising was the gun’s performance. We tested the 191122 at 25 yds. with CCI Pistol Match, Wolf Match and Federal Gold Medal .22 Long Ri e ammunition. Accuracy with all loads was quite impressive, with the CCI and Wolf 70 M 2010 WWW.AMERICANRIFLEMAN.ORG http://WWW.AMERICANRIFLEMAN.ORG

Table of Contents for the Digital Edition of American Rifleman - May 2010

American Rifleman - May 2010
Editor’s Letter
Armed Citizen
Standing Guard
President’s Column
One On One With Ted Nugent
Readers Write
News, Notes and Ephemera
Questions & Answers
American Marksman: A First-Timer’s Guide To 3-Gunning
Bushmaster ACR: A Transformative Firearm
Coming To America: Para USA Goes Beyond Innovation
The 2010 Golden Bullseye Awards
Magnum Maximization: Ruger’s Extra-Capacity .327 Revolvers
NRA LED: A Half Century Of Service
Annual Meetings
Dope Bag: Data & Comment
Political Report
ILA Report
Regional Report/Member Info & Benefits
I Have This Old Gun

American Rifleman - May 2010