grtIII trigger in Benjaman trail np.22

[Rian]

I've installed the grt trigger in my .22 benjaman but all the lubes i put in the trigger come out in about 30 shots resulting in wild grouping. I noticed that the parts are stamped and not smooth. Help!!!!!

[CharlieDaTuna]

Lubing the trigger would have nothing to do with the way that it groups.

 That said, and if you put a lot of lube in the trigger (which requires very little lube at most) and it migrated into the piston and seal area, you would probably have excessive detonation resulting in wild groupings due to the variation in velocity.

[Perry]

all the lubes i put in the trigger come out in about 30 shots

What kind of lube did you use and where does it come out?

[yote300wsm]

A little shot of spray dry film Moly or Graphite does wonders. Make sure that you degrease it with something before you apply the dry lube.

[Rian]

Lubing the trigger would have nothing to do with the way that it groups.

 That said, and if you put a lot of lube in the trigger (which requires very little lube at most) and it migrated into the piston and seal area, you would probably have excessive detonation resulting in wild groupings due to the variation in velocity.

When the action is taken out and you can see the two main catches that hold the piston when it is cocked, greasing the lower one - visible just above the top front of the safety results in the very tight group that the gun shot pre 600 shots or so - i'm currently at arrount 900 I've tried the oil-moly mix and the lithium red and tacky grease and it simply wipes it right out.  The trigger pull is noticebly rougher then and very difficult to consistently bring to the second stage. Also the grouping becomes poor.

[Rian]

all the lubes i put in the trigger come out in about 30 shots

What kind of lube did you use and where does it come out?

 
I've tried the 30wt oil and moly mix and red lithium polymer grease; as for coming out it comes out the base of the trigger -right where your finger is.

[CharlieDaTuna]

You should not be using lithium grease any place on the gun  at all. If you are using a moly/30wt mix, one drop on the pivot points and the intermediate release and sear shoulder is more than enough and should last for a couple thousand shots. I lube triggers using a tooth pick unless I have the trigger out and on the bench. Any excess should be wiped off.

You should never have any grease coming out out of the trigger area or any place else for that matter.

[Rian]

Thanks, would you have any idea why - as i posted above- putting a lubrican on the latch visible above the front of the safety when the action is out would affect the grouping?  Up to right arround 600 shots it grouped great but i started to notice the trigger getting rougher and less predictable also the grouping spread and wasn't as consistent.  This was when i installed the grtIII. I like the triggers performance but the gun still has the grouping problem that started with the old one.

[Jay]

I'd have to say Rian that it does not have anything to do with the trigger/safty,it sound's more like the seal gave out or (hope not) your ram is going on it. Also check ALL stock screw's an the pivot one are socked down well on the gun along with your scope mount's as that will kill your acc. bad.

[uncle paulie]

I'm with Bob and Jay, back off on the lube and try loctite on the stock screws, let it sit for 48 hrs. See if it helps. As far as stamped, rough edges on the GRT; seems odd, as far as I know, Mr. Tuna laser cuts these from flat stock. Seems I saw a post on the old site which showed the steps involved in producing them. I still can't figure out how and why he's not charging twice as much for these things, they are certainly worth more than $32. I'm thinking he must have some kind of Santa Clause complex!!

pv

[Rocker1]

  The trigger is not stamped the parts that the trigger installs to is stamped steel I assume that is what you are speaking of, lay off the lube very little if any is required at the trigger maybe some you have put on it has gotten into the chamber , could have blown a  piston seal. Thanks David

[SoMiss1]

I gotta say PROPS to CharlieDaTuna.
I have always appreciated a good trigger.  My 270WSM has a fine tuned trigger that I had to pay a gunsmith to work on... but love it.  But, to be able to order a trigger for $32 and put it in in 5 minutes that performs like this is AWESOME! 
Improves my shooting skills definitely!  Thanks for making shooting more fun CDT!

[Rian]

Sorry, as rocker1 said the levers in the trigger housing are stamped not the grtIII sorry for the missunderstanding.  Can anyone point me to some dirrections on how to remove the piston and seals to check them - maybe thats the problem since everyone who's taken these apart from the factory says that the sharp edges in the main chamber can cut up and destroy the seals.  Also where would i find a good replacement seal?

[Jay]

You can do an advanced search(top of page on right) on here an find all the info you will need,plus you will need to build a compressor an learn all the safety rule's for these gun's or you can end up very hurt by them. Be Safe an have Fun.

[Cheap Shot]

Rian; I may be experiencing the same symptoms (in a Crosman Storm with CDT trigger) that you have described.

During the trigger-travel there is a "crunch" feel instead of a smooth pull. If I put some moly/oil into the sear/strut engagement area, the pull smooths out for some shots, but then the crunch returns.

I expect I need to polish the engagement surfaces of the sear and strut, as I expect that is where the crunch is.

Has anyone run into this before? Does anyone know if I can remove and reassemble the sear and strut out through the slot the trigger comes out of? Or do I need to remove the trigger assembly and take them out from above?

Thanks for any and all help.
Pat

[CharlieDaTuna]

The trigger is much easier to work on out of the gun if taking the trigger apart.

There is a good chance that there is interference somewhere in the trigger but disassembling it is probably not needed.

 Look in the Trouble Shooting Guide in the section >>>> "Problem:   The trigger blade hangs up, hard trigger pull or does not want to return:"

   http://charliedatuna.com/airgun_docs/GRT_III%20Troubleshooting.doc

Look for the interference, eliminate it and it will probably solve your problem.