cva hawken wont fire

[ryan.u]

i have a cva hawkn and when i go to fire the cap wont go off unless i try shooting the same cap 4 times then it goes off . i took the gun 100% apart and cleaned every thing on the gun what should i do still wont fire any trouble shooting ideas to get it to work

 

[scrat]

id start with the nipple replace the nipple could have mushroomed over time. cheapest to try first. then dry fire with a cap only no powder and listen to the gun. when you pull the trigger you should hear the cap explode. other than that may need to do some work on the lock.

 

[Macmac]

I agree with scrat. Either the nipple is over sized or it is pounded wide, and the cap isn't seated on the anvil. The proof is after hammering it 3 or 4 times you have finally seated it.

 

[Acorn Mush]

Another possibility is a weak mainspring in your lock. You might also check to see if there is some condition in the lock mortice that would interfere with the moving parts of the lock. Sometimes it doesn't take much to slow the hammer fall just enough to cause the cap not to fire.

 

[4v50 Gary]

Cheap experiment. Vent out the nipple and then fill it with 4f powder. Cock the hammer. Have a friend hold a lit cigarette to the nipple. If it goes boom, then the nipple is cleared of any wrongdoing.

Next test is what Acorn Mush suggested. See if the hammer if not dropping with sufficient energy to fire the cap.

 

[mykeal]

Cheap experiment. Vent out the nipple and then fill it with 4f powder. Cock the hammer. Have a friend hold a lit cigarette to the nipple. If it goes boom, then the nipple is cleared of any wrongdoing.

Huh? How does that detect mushrooming of the nipple sufficient to prevent the cap from seating? Which, by the way is my vote for what's wrong here.

I'd suggest you simply run your fingernail along the nipple from the base of the cone to the tip; you'll be able to feel a mushroomed tip pretty quickly that way. Then either replace the nipple (M6X1mm thread size, Treso p/n 11-50-05, ToTW p/n CVA-A) or chuck it in a drill and file the mushroom down.

 

[1KPerDay]

Also make sure the edges of the hammer aren't rubbing against the side of the nipple, slowing it down. Mine did before I moved the barrel back. Flat leaf mainsprings are also not the best/most powerful IMO... the one on my CVA hawken pistol seems much weaker than the identical one on my hawken rifle. The pistol has iffy ignition.

 

[nw_hunter]

My vote would go with the Peened or mushroomed nipple.
After a few tries the hammer will push the nipple down far enough to fire.

I would just replace it! If the problem still persists, look at the hammer to see if it strikes the nipple on center, and then the spring.

Betcha it's the nipple

 

[scrat]

Ya the cigarette trick im just not to sure about. Lol

 

[ED21]

I built two of these from kits. More than likely, it is a nipple problem. Either the nipple is "mushroomed" as suggested or the caps are not the correct size. Another possible problem is that the hammer is not aligned properly. My first kit the hammer was not centered on the nipple. If I remember correctly, the hammer is hollowed out and the top side edge of the cupped portion was rubbing the side of the cap and nipple. I had to heat the hammer (off of the lock) to a cherry red and bend it ever so slightly to obtain the desired result. Being the hammer came down on the center of the nipple. If these suggestions do not work, then look at the springs to determine if the desired force is applied. I would venture to guess that the problem is undersized caps and or a worn nipple. Good luck.

 

[Macmac]

If he ain't bustin caps nothin more needs tested till he does.

I agree that the nipple is either to big, or it is mushroomed.. The fix is replacement or filing in down as you spin it.. All said above.

 

[Shultzhaus]

The man said he had to hammer the cap a few times and then it would go off. I think cap size was addressed. That would explain why they are not fully seated on the nipple. CCI #11s have a small c on the top, #10s have small cci 10 on the top, Remington 10s have nothing on the top. Don't know what Rem 11s have on them.

 

[Hellgate]

My vote would be to get a bigger sized cap. Even a loose fitting cap should pop each time. Too small of a cap may need a couple of hammer whacks to force it down on to the where it is finally crushed enough to pop. A heavier hammer spring would smack a small cap harder and possibly seat it & pop it in one whack.

 

[BHP FAN]

I've had that happen when I cleared the nipple too many times with a cutting torch tip cleaner,in essence,a tiny file.the hole down inside is smaller on purpose,to create a ''venturi'' jet effect.a larger straight down hole,while it looks better,doesn't work as well,it actually seems to ''push'' the powder away from the explosion of the cap.Get a new nipple,preferably a ''hotshot'' or vented nipple.