You should velocity test your NAA Revolver

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familyman555

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In March I bought a new NAA Black Widow revolver. I have ended up sending it back to the factory three times now while trying to get them to fix problems with abnormal low velocity. Initially I was getting 70-70% of their expected published velocity. The factory gunsmith agreed that it warranted sending back for free warranty service.

When I got it back he said that he had changed out both cylinders (22LR and 22 Mag) but nothing had changed. Apparently they do not do velocity testing at the factory and so he really didn't know if was any better or not when sending it back to me. I am amazed that they don't do velocity testing. So a couple days later I sent it back for a second time.

This time they just sent me a new revolver. However, since they do not velocity test they must have just been hoping that it would work better and it didn't. With the same bullet weight, the 22 LR rounds were coming out faster than 22 Mag rounds. The 22 mag velocity varied from 600 to 734 FPS instead of coming out right around 1,000 FPS which is a 66% average of normal. Another ongoing annoyance is that the adjustable sight could not be adjusted far enough to get the shots on target at 14 yards. NAA does not sight in their guns. From some comments by people that have toured the factory, their entire test is a function test of firing into a snail bullet trap and they have no idea if the gun shoots accurately or at a normal velocity. So it went back to the factory the next day and I am waiting for it to be returned.

If I was just plinking with it by shooting 55 gallon barrels at close range I wouldn't care but I had thoughtfully selected the Black Widow with a 2" barrel because a 40 grain 22 Mag should have a 1,000 FPS velocity and that should give me the penetration I was interested in for aimed self defense. If I was not going to get the published velocity I would not have settled on the Black Widow revolver.

So I encourage you to velocity test your NAA Mini-Revolver, if you are using it for self defense, and are expecting a specific velocity based on NAA's published tests.
 
I have a NAA 22 mag holster grip version with the 1 1/8" barrel. With my chrony set up about 15' out it shoots the folowing:

CCI Maxi-Mag hp+v 30gr = 950 FPS
Remington Accutip-v 33gr = 930 FPS
CCI Maxi-Mag Hp 40gr = 900 FPS
Winchester Super X JHP 40gr = 840 FPS
 
I seem to have lost a sheet in my book, but I still have the recorded velocity for 35 gr. Remington accu-tip. 1036 FPS avg. from my 1-5/8" mini.

855 FPS with 40 gr. Remington golden bullets.
 
My 1 5/8" .22 shoots about 800 fps with Federal Lightening bulk pack. My super companion, loaded with NAA's 30 grain conical and 2.0 grains of Bullseye clocks 1250 fps. That one's a screamer as minis go and pretty danged accurate, too. Not only that, but I have a spare cylinder for it for a quick reload. I like it as a defense gun even better than the mag versions.
 
Try some different ammo before you assume it's the fault of the gun.

.22Mag seems to have been originally intended as a rifle cartridge. As such and given the greater amount of powder in the case it makes sense that it will be a slower burn. With the extremely short barrel on all the NAA arms you may not be obtaining the full burn pressure before the bullet leaves the barrel. Or the pressure may just be reaching the peak as the bullet is departing so you're not getting the best accelleration for long enough. Other brands of .22Mag may have faster burning powder that will peak their pressure earlier and accelerate the bullet harder and for longer to exit at more like the speed you expect.
 
I had tried a Remington and Super X brand and got similar low velocity for both. I wonder if there is a market opportunity for a 22 Mag optomized for a short barrel pistol instead of a rifle.

It sounds like most everyone is getting more velocity out of their shorter barrels than I was out of a 2" barrel.
 
I'd try mine for you but I'm running with their longer 4.2 inch barrel so what I get won't mean diddly for your situation.

And yes, if the market was there I think you're right that a load set up for these shorter handgun applications would likely do decently.

I still don't see what the difference would be with your gun compared to other folks. With a revolver there's pretty much only two things that will alter the bullet speed. The fit in the barrel that produces bullet drag and the cylinder to barrel gap that lets out a little of the gases.

On the bullet drag issue my own gun started out by shaving a fair amount of lead. I would only get good groups for about 40 to 50 rounds and then things opened up. At the next cleaning shavings of lead came out on the barrel brush. I've got around 500 to 700 rounds through it now and the leading up is all but gone. So maybe some barrel break in is needed before these things let the bullets slide through more freely? I wonder if anyone has ever tracked their velocity changes from new to well used to see if this is a factor?
 
Velocity testing from my .22LR/.22 Magnum Black Widow:

.22 Short CCI CB 29 grain RN, Ave. 450 fps

.22 LR Aguila Colibri 20 grain RN, Ave. 317 fps

.22 LR Winchester Xpert 36 grain HP, Ave. 863 fps

.22 LR CCI Stinger 32 grain HP, Ave. 1006 fps

.22 Magnum, CCI Maxi-Mag 40 grain FMJ, Ave. 920 fps

I've gotten some other ammunition in .22 Short, LR, and Magnum (including some CCI Maxi-Mag +V) that I plan to test on my next outing. Not sure yet when that will be though.
 
I've never heard of anyone sending a gun back for warranty work due to low velocities. :confused:
 
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