Drop Test per Massachusetts SB2276

H.P. White Laboratory, Inc.
3114 Scarboro Road
Street, Maryland 21154-1822
Telephone: (410) 838-6550
Facsimilie: (410) 838-2802

23 November 1998
(HPWLI 7735-01)

North American Arms, Inc.
2150 South 950 East
Provo, Utah 84606

Attention: Mr. Ken Friel

Dear Mr. Friel:

H.P. White laboratory, Inc. recently conducted Drop Testing of five North American Arms, Inc. Caliber .22 WMR Single Actio Revolver, Model NAA-22M using procedures specified in Section 19 of Massachusetts Senate Bill Number 2276. These handguns were received directly from North American Arms, Inc. on 30 October 1998 and 9 November 1998 via United Parcel Service.

The Massachusetts requirements are for each of five new handguns to be dropped onto "...a solid slab of concrete..." from a height of 1 meter from six positions, while in a ready-to-fire condition. SB2276 is not clear about whether the 1 meter drop height is to be measured from the gun's center of grvity, or from its lowest point. We took the more demanding approach and used the lowest point. further, the fifth position specified is "...on either side...". We interpreted that to mean "...on both sides...". Finally, it is virutally impossible to assure a direct impact "...on the exposed hammer..." when the gun is allowed to free-fall from 1 meter. Therefore, we placed the guns muzzle down on the concrete slab and droped a solid steel cylinder, equal in weight to the fully loaded gun, from a height of 1 meter so that it impacted directly on the hammer. We consider this to be a somewhat more severe test than that outlined in SB2276, and it is repeatable.

Prior to Drop Testing, each gun was function fired with commercial ammunition. For each drop, the guns were fully loaded with live ammunition, except for the round in firing position. That one was an empty primed case. After testing the primed cases were fired in the test guns. Before each drop, the hammer was placed in the "full cock" position. Results are presented in Table I.


TABLE I. RESULTS (NAA-22M SINGLE ACTION REVOLVER)
(Massachusetts SB2276, Paragraph 19 Requirements)

Serial Number	Weight (lbs.)	Trigger Pull (lbs.)	Horizontal (a)	Horizontal (b)	Muzzle Up	Muzzle Down	R.Side	L.Side	Exposed Hammer
E026839	0.45	4.48	NF	NF	NF	NF	NF	NF	NF
E026915	0.45	4.48	NF	NF	NF	NF	NF	NF	NF
E026916	0.45	4.48	NF	NF	NF	NF	NF	NF	NF
E026914	0.45	4.23	NF	NF	NF	NF	NF	NF	NF
E268364	0.45	4.00	NF	NF	NF	NF	NF	NF	NF
NF = No Fire
(a) = Right side up (normal firing position)
(b) = Upside down

As indicated by the information in Table I, the five NAA-22M revolvers submitted for testing MET THE REQUIREMENTS of Massachusetts SB2276, Paragraph 19.

Thank you for the opportunity to conduct these tests. Should you have any questions regarding this matter, or if we may be of any further service, please do not hesitate to contact us.

Very truly yours,

H.P. WHITE LABORATORY, INC.



Lester W. Roane


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