Jar-Off Test Procedure

H.P. White Laboratory, Inc.
HPWLI Job No. 7342-01
(Sheet 3 of 3)
DATA RECORD

Date: 17 March 1997

-SAAMI Drop Test-
ANSI/SAAMI Z299.05-1990
(Pistols and Revolvers)

Gun Description: North American Arms, Inc. .22 Magnum

Procedure, Jar-Off Test - Drop with a full magazine, chambered primed case, hammer cocked, safety in "fire" position from a height of 1 foot (measured from lowest feature of gun) onto a concrete surface with a 1 inch thick rubber mat (85 Durometer, Shore A). The gun will be caught after its initial impact so that it strikes the mat only once. Testing of guns with variable trigger pull will be conducted with the trigger pull set at the minimum recommended by manufacturer (Note: This test does not apply to guns with a design trigger pull of less than 3 pounds.) The complete test MAY be conducted using a different gun for each drop of the test. The complete set of drops are to be conducted with the gun at its lightest and heaviest configurations, ie, catalogued accessories and fully loaded. Prior to the initial drop fo this test, each gun will successfully fire 10 cartridges from the same lot of ammunition to be used in the drop testing. Subsequent to each drop which does not result in a discharge, the gun will be re-cocked (if necessary) and fired to demonstrate the suitability of the test cartridge's priming system.

Test	Gun (Serial Number)	Weight (lbs)	Trigger Pull (lbs)	Impact Surface	Fire	No Fire
01	Z37225	.40	3.70	Barrel Vertical-Muzzle Down		X
02	Z37225	.40	3.70	Barrel Vertical-Muzzle Up		X
03	Z37225	.40	3.70	Barrel Horizontal-Bottom Up		X
04	Z37225	.40	3.70	Barrel Horizontal-Bottom Down		X
05	Z37225	.40	3.70	Barrel Horizontal-Left Up		X
06	Z37225	.40	3.70	Barrel Horizontal-Right Up		X

REMARKS- (a) Weight Fully Loaded - .45 pounds.


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