NAA Black widow and S&W 351 ammo clocked

[gau5]

Smith and Wesson 351 .22 magnum, Cyl Gap= .006

Win.Dynapoint..45 gr...891, 904,900,921,900
Fiocchi 40 gr...............981,1081.1067,1058,1025
CCI HP-V 30gr............962,1028,1045,994,1065
CCi TNT 30 gr.............1186,1265,1176,1154,1220

NAA Black Widow .22 Magnum, Cyl Gap=.012

Win Dynapoint.....801,851,827,870,859
Fiocchi...............1023,1022,954,971,864
CCI HP-V...........1045,1050,1077,1077,954
CCI TNT.............1137,1106,1145,1152,1206
Win Supreme......1082,1045,1090,896,1089
PMC Predator......968,1005,988,1025,1077

NAA Black Widow .22 LR
Velocitor 40 gr...835,850,926,868,868
CCI FMJ 40 gr..925,904,904,906,927

 

[JWF III]

This is just FYI...

If you did these tests (good job by the way), NAA has got a disclaimer on their website about having problems with PMC ammo in their pistols. There seems to be cases where the round under the hammer and the one adjoining round fire. The problem has only been expierenced with PMC ammo.

I found this out while researching a possible impending buy. Like I said, it's on their website. You may want to check it out, just so you have all the info before firing more of it.

BTW, I know the 351 has a 1 7/8" barrel. What length barrel does your NAA have? 1 1/8" or 1 5/8"?

Thanks for the chrono report. Both of these revolvers (along with the 317) are on my possibles list for my next pistol. With the NAA in the lead (price and size) as a snake gun. (The search got a little more serious after I killed a copperhead on the way back from the dog pen a couple of nights ago. .357 just seems like a lot of overkill, but that's what was on my hip.)

Wyman

 

[JWF III]

It was a May '04 advisory. I didn't see the date previously. So I don't know the current status of the problem.

Found under "Tech Support" and "Product Advisory-Mini Revolver Ammo"

May, 2004


PRODUCT PERFORMANCE ADVISORY BULLETIN



This Product Performance Advisory Bulletin is issued for the benefit of NAA's customers, owners and users of its .22 caliber revolvers. NAA has recently learned that the use of PMC .22 caliber ammunition (Magnum and LR) may affect the performance of its revolvers. Specifically, NAA has become aware of a phenomenon where an inadvertent, double-discharge (two rounds simultaneously discharging, one aligned with the barrel and the other out of battery) may occur when PMC Brand ammunition is used in NAA .22 caliber revolvers. These double discharge occurrences have been investigated by NAA and, based on the results of our investigation to date, it appears that the inadvertent, double-discharge has only occurred with PMC Brand .22 caliber ammunition, both in magnum and long rifle. However, NAA has not learned of any confirmed double-discharge occurrences involving any other brand of manufacturer's ammunition.

At this time, NAA recommends that its customers, owners and users of NAA .22 revolvers DO NOT USE ANY PMC .22 CALIBER ammunition (Magnum and/or LR) in any model of NAA revolvers. As with all of its firearms, NAA encourages its customers to exercise the utmost caution and care when using its products, including always wearing appropriate eye and ear protection and following all of the Basic Rules of Firearms Safety.

NAA takes tremendous pride in its finely crafted products. Its products have been certified by independent testing laboratories to meet or exceed every published firearms standard for safety, performance and reliability. All of NAA's products are warranted for a lifetime and its customer service and technical teams are ranked among the best in the industry, serving its more than 500,000 customers over the past thirty years.

NAA appreciates that, among other things, its products are purchased and used as back-up weapons for law enforcement and for personal protection. As such, NAA recognizes that its customers should be supplied with any information that may affect the safety, performance and reliability of its products.

If you have any questions concerning this Product Performance Advisory Bulletin, please contact us at (800) 821-5783 or write us at North American Arms, 2150 South 950 East, Provo, Utah 84606-6285, Attention General Manager.

Wyman

 

[m_kirk2001]

The Black Widow from NAA has a two inch barrel...and I just bought a NAA Mini Revolver in .22 MAG/LR with 1 and 1/8 inch barrel two days ago and I am very impressed with it...Thanks for the chrono info...

 

[.455_Hunter]

Great Job!

FYI- Here are the results I got out of my 1 5/8" NAA Mini in .22 Mag:

A. CCI 30 gr. TNT JHP- 1151 fps (88 fpe)
B. CCI 30 gr. +V JHP- 1183 fps (92 fpe)
C. CCI 40 gr. JHP- 1015 fps (91 fpe)
D. REM 40 gr. PSP- 1016 fps (92 fpe)
E. CCI 50 gr. Gold Dot- 883 fps (87 fpe)
F. FED 50 gr. JHP- 897 fps (89 fpe)

 

[gau5]

JW thanks for the heads up, that sure is a strange malfunction.
I always wonder about advertised vs real velocitys.
The BW cyl gap may have an impact vs the S&W.
Wish I were getting at least 1250 from the BW like the NAA site has. Probably just different lots of ammo.