H&R model 939 .22 revolver. Misfires a CCI blazer?

My suggestion is to try another brand of ammo.

I don't know about CCI .22 LR ammo, but CCI primers have a reputation of being harder to ignite than other primers. Lots of folks can't use CCU primers because they won't ignite from a light firing pin blow.

If your 9-shooter is reliably shooting every other brand of ammunition, I would not worry. Most .22's are notoriously ammo sensitive and it seems as if CCI cartridges give your revolver indigestion.

Good Luck

Doc

If it works well with one ammo but not another it is an ammo issue

Your gun simply does not like Blaser or maybe just not that box of Blaser

Welcome to the wonderful world of rimfire

I have fired the same ammo out of two identically set up rifles made by the same company

One liked it one did not

It is possible that the Blasers have a harder primer and your gun has a weak spring, short pin or the rounds sit deeper in your cylinder

While the H&Rs were great little plinkers they were not match grade and were not QCed as if they were

There will be inconsistencies between guns just as there will be between batches of .22 ammo

It is unlikely that lubrication will cause light strikes in a revolver

If your gun does not like CCI then trade it to someone with a gun that does for ammo that your gun does like

Rimfires can be very picky about the ammo they take. This is part of why everything is centerfire now.

Try a box or two of some different types of ammo.

My 22-A takes bulk boxes of Federal pretty well, so I stick with that.

It handles the bulk boxes of Remington pretty well, too.

Seriously though, try some different brands of ammo. When you find some that works, stick with it.

It's not your revo's fault. It's just the nature of rimfire. It's perfectly normal.

Hang on your extra rounds. You can either trade them with someone, or you might get another .22 that likes them, and not the ammo your H&R likes.

H&r Model 939

I have a couple .22 pistols and rifles. Some of them are very picky with ammo. Certain brands give me failure to fire and failure to extract. These usually happen with the large quantity boxes of ammo.

before you go blaming the gun try another brand of ammo.

if it continues to misfire then i would look into the gun itself.

have you looked at the ammo to see if there is a good firing pin indentation ?

just bought it! Take it back!