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Another CVA Hawken Question
- Thread starter Grullaguy
- Start date
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Rogue River
45 Cal.
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- Dec 6, 2007
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The hole in the nipple is most likely burnt out and when you shoot the increased pressure from the burnt out hole kicks the hammer back! Put in a new nipple. It could be a weak spring but I would replace the nipple first.
The hammer being blown back to half-cock is usually an indication that the flash hole in the nipple has enlarged, and/or the hammer mainspring has weakened. Try replacing the nipple and see if that takes care of the problem. If not, then a new mainspring may be in order.
SgtSchutzen
45 Cal.
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- Dec 3, 2008
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- 626
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One of the above is probably the culprit. More than likely you need a new nipple. Whatever the cause it needs fixing as it`s hard on your lock to have the hammer blown back into the tumbler notch like that.
You didn't say what projectile and powder load you were shooting.
With a heavy slug and a large powder load the hammer can be blown back to half cock even if the nipple is in good condition.
If the nipple is new or the hole thru will just barely allow a standard paper clip to pass thru it, blow back is a sign of a weak mainspring or excessive breech pressure.
With a heavy slug and a large powder load the hammer can be blown back to half cock even if the nipple is in good condition.
If the nipple is new or the hole thru will just barely allow a standard paper clip to pass thru it, blow back is a sign of a weak mainspring or excessive breech pressure.
I am using a 10 grain kicker of Goex FFF with 55 grains of Pyrodex CTG. I have had a beast of a time getting ahold of powder and only have about 100 grains of black and the can of CTG.
My nipple hole (at the bottom) is so small I doubt I could fit a paperclip in. I have contacted CVA to ask if they sell mainsprings or if I have to contact **** Creek - "you know that other place".lol
CVA left an out of office reply, so I will have to wait until tomorrow to hear more.
I have had problems in the past with misfires and have mostly remedied them by taking the outside nipple diameter down a bit with some emery cloth and seating the cap using the hammer every time before firing.
The mainspring is looking like the most likely culprit.
My nipple hole (at the bottom) is so small I doubt I could fit a paperclip in. I have contacted CVA to ask if they sell mainsprings or if I have to contact **** Creek - "you know that other place".lol
CVA left an out of office reply, so I will have to wait until tomorrow to hear more.
I have had problems in the past with misfires and have mostly remedied them by taking the outside nipple diameter down a bit with some emery cloth and seating the cap using the hammer every time before firing.
The mainspring is looking like the most likely culprit.
I have to agree that a 65 grain powder load should not set the hammer back to half cock if the hole thru the nipple is that small.
CVA will tell you to contact Deer Creek because they sold all of their spare parts to them.
Deer Creek doesn't have a Web site or an E-Mail address so you will have to call them.
Here is their address and phone number
Deer Creek Products
6989 E Michigan Rd
Waldron, IN 46182
(765) 525-6181
CVA will tell you to contact Deer Creek because they sold all of their spare parts to them.
Deer Creek doesn't have a Web site or an E-Mail address so you will have to call them.
Here is their address and phone number
Deer Creek Products
6989 E Michigan Rd
Waldron, IN 46182
(765) 525-6181
canemminor
32 Cal.
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- Mar 11, 2010
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My .36 does that also. My load is 30 gr FFF and a patched 348 RB. It is a side slapper so the nipple ends directly into the combustion area of the bore. I solved the problem by drilling a small hole crosswise throughthe base of the nipplem to vent off the gasses upon firing. I don't remember the drill size, mabey 3/64. that solved thr problem and I have had no reliability issues because of it .
