Author Topic: Big Cat trigger problem solved.  (Read 4596 times)

Offline Furseeker

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Big Cat trigger problem solved.
« on: April 27, 2010, 04:48:21 PM »
I made a post a few weeks ago about some strange things going on with the stock trigger on my Big Cat. The first time I noticed something was wrong was when I cocked the gun and the barrel tried to slam shut before I even had a chance to get a pellet loaded. Luckily I had not let go of the barrel and managed to catch it before it had a chance to slam closed. I thought that maybe I had not taken a full cocking stroke and the lock up had just barely hooked up. But after that happened I then realized the trigger was completely different than what I had become accustomed to. Instead of very little free travel then a significant creep before it would go off, every so often it would have a long bit of no resistance and then go off with the slightest touch. So I knew something was not like it should be. Then this weekend down at the dairy farm the thing tried to slam shut on me again and just like before I was lucky to catch it and keeping in from slamming home. Well I cocked it again, making sure to make sure a used a full stroke and bottomed the travel out. I loaded a pellet and was in the motion of shouldering the gun without my finger anywhere near the trigger when it went off. With that I thought I had to fix the problem because now the gun had become unsafe to be around.

Well tonight I finally had a few minutes to tear it down and check it out. I was sure I was going to find a badly worn cocking shoe or something like that. But upon disassembly everything looked square and no really rounded or worn parts to be found. The stock power plant was replaced long ago with the Tarantula spring, custom spring guide, new top hat and apex piston seal. I was anxious to see how everything was looking inside too. I was very impressed with how the good the seal looked and spring wasn’t perfectly straight but all in all it looked like the new power plant was holding up. I went over the trigger with extra care and the only thing that really stood out was how much foreign material was in there. I removed what appeared to be a large piece of straw that was well covered with lube. And it was right in the sear area. I have posed the gun on straw bales several times for photo ops. So some chaff must have some how got into the trigger internals. Upon cleaning everything up and re assembling everything, with the help of Double Diamond, I went to the basement to do some testing. Well after 35 to 40 shots the trigger seems like the trigger of old. Still the crappy stock Gamo trigger, but one I’ve learned to shoot. Every shot was just like the last, very little free travel, a constant amount of creep and then finally a sharp release. The only thing I can think is that the large piece of chaff was frequently getting in between mating parts and preventing positive lock up and consistent trigger action. Seems like a lot of work for a trigger that will soon be replaced by the gold trigger, but I had to know what was going on in there.

Offline djmyers

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RE: Big Cat trigger problem solved.
« Reply #1 on: April 27, 2010, 10:55:12 PM »
Good thing you got it fixed, that could have gone realy south realy fast. That grt will complete the gun for sure. Sounds like that's all it's missing. I love both of mine.
Gamo Hunter gas piston GRT 3 leapers 3-9x40ao
Big Cat GRT 3 leapers tactedge  
Diasy 120
RWS 350 mag PG2 leapers 4-16x50ao
Crossman 2200
Crossman 2250
Crossman 1377
Daisy 880
2 Chinese underlevers
2 European break barrels.

Offline pgsmith

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RE: Big Cat trigger problem solved.
« Reply #2 on: April 28, 2010, 12:24:55 AM »
Glad to hear that you got it fixed, I think I would have waited for the trigger best think that I have done to my Cat so far. Now a little off topic, how do you like the Cat with the Tarantula spring, custom spring guide, new top hat and apex piston seal. I am guessing that you bought it as a package as I am I think looking at the same package. Are you shooting heavier pellets now mine likes the CPHP's in the stock form.

Pat
Gamo Big Cat 1200 Leapers 5th gen 3-9x50
Ruger Airhawk elite

2010 Kills
Rabbit (5)


Offline gamo2hammerli

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Re: Big Cat trigger problem solved.
« Reply #3 on: April 28, 2010, 12:07:15 PM »
Good job.....hope your post will help someone if they have a similar problem.

Another reason to hold on to the barrel after breaking/cocking it.....and always have the muzzle pointed in a safe direction.
Gamo: Expotec .177 + Big Cat .177 + Viper .177 + Whisper .177, Hammerli Titan .177, Diana model 24 .177, RWS-Diana P5 Magnum pistol .177, Crosman: G1 Extreme .177 + Storm XT .177 + Sierra Pro .177 + 1377 pistol .177, Air Arms S410SL .22, BSA Scorpion T10 .22, FX Cyclone .177, Remington Air Master 77 .177 + BB\'s,

Offline shadow

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Re: Big Cat trigger problem solved.
« Reply #4 on: April 28, 2010, 12:11:10 PM »
That's great to hear and I always try to watch that myself when I'm laying a shooter down next to a harvest for a pic. Ed
I airgun hunt therefore I am... };)  {SHADOWS Tunes & Camo}  airguncamo@yahoo.com

Offline Furseeker

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Re: Big Cat trigger problem solved.
« Reply #5 on: April 28, 2010, 03:25:34 PM »
I did get all of it as a package. And I'm very happy with the outcome. I shoot mostly CPHP also because they are cheap and extremely accurate out of this rifle. My gun groups will with Gamo Red Fires as well. It really shoot every thing I've put in good and I love the way it groups the Crow Mags. I understand the heavier pellets are a little harder on the spring but for I don't shoot them very often and I'm always looking for reason to tear a gun down and rebuild it. The Big Cat is my only .177 I currently have, but I have my eye on another stock Big Cat that I may pick up and try a different power plant set up. I think for the money and with a little TLC the Big Cat makes a great little shooter. Let me know how you tune goes.

Offline redroush00

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Re: Big Cat trigger problem solved.
« Reply #6 on: April 29, 2010, 09:05:48 AM »
iM PROBABLY THE ONLY ONE THAT TOOK OUT THE GOLD TRIGGER AND WENT BACK TO STOCK. i FOUND THAT REMOVING THE SPRING FROM THE STOCK SETUP GIVES ME BETTER FEEL. tHE GOLD WAS TOO SENSITIVE.
Ruger Airhawk
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Offline jay morgan

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Re: Big Cat trigger problem solved.
« Reply #7 on: May 02, 2010, 09:33:44 AM »
HEY I'm glad it was just trigger crude, the spray just didn't flush it out,I'm glad you looked deeper in mech., stay safe & shoot straight.LATER BRO!
N.R.A.(endowment),G.O.A.(life), N.R.A. trainer for,c.c.w.,all firearms &reloading /\" NO FREEMAN SHALL EVER BE DEBARRED THE USE OF ARM\'S\"(Thomas Jefferson)

Offline Furseeker

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Re: Big Cat trigger problem solved.
« Reply #8 on: May 02, 2010, 03:18:02 PM »
Jay I thought I had it fixed but it did it again the other day. When I took everything down and checked the cocking shoe everything looked fine. Now I'm just flustered, it's only done it once since I cleaned it out. Maybe another take down is in order. I have to get it figued out because if it's something in the mechinism it will likely do it again even after I install the gold trigger.

Offline jay morgan

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Re: Big Cat trigger problem solved.
« Reply #9 on: May 02, 2010, 04:20:17 PM »
But what could of got back in trigger mech. so soon ? & you diff. don't want softer trigger pull at this time in game,I'm dumb as a rock on air gun thing's, is gun new send it back or see if they will send new trigger assembly maybe, or see if one of our smarter guru's out there can tell by pic's, I'd have to have it in my hand's to have an opinion & then could not be positive on it, but maybe shoe.PLEASE SOME OF YOU GREAT GUNNER'S OUT THERE HELP MR. FURSEEKER, I KNOW ONE OF YOU CAN, YOU GUY'S ARE GREAT IN YOUR KNOWLEGE ON THIS STUFF!!!!
N.R.A.(endowment),G.O.A.(life), N.R.A. trainer for,c.c.w.,all firearms &reloading /\" NO FREEMAN SHALL EVER BE DEBARRED THE USE OF ARM\'S\"(Thomas Jefferson)