TRG Trigger help

insectguy

insectguy

Sergeant
Full Member
Minuteman
Mar 11, 2009
350
11
Chattanooga
#1
Just got my TRG!!! The gentleman from whom I bought it stated he shot about 200 rounds through it and put it in the safe. When I got it, the trigger was set so badly it was a heavy, single stage.

Does anyone have a favorite procedure for setting the 1st and 2nd stage adjustments in order to bring back the two steps?

I appreciate the help, and pictures will be forthcoming. (I've also already ordered the adjustable cheekpiece, buttstock and safety arm from Terje-- Thanks Terje!)
 
#3
Re: TRG Trigger help

Not to worry you but in a match in Al. My TRG 22 trigger went to single stage and I couldnt get it right. It was about 15-22 lbs guessing and finaly wouldn't cock the bolt.
Good news was that Baretta replaced it and got it back to me in time for the next match. Not one penny out on my part and a note from the smith inside explaining that he tried to repair the trigger but it continued to fail so he replaced the entire group and set the trigger to 3#. I dropped that to Two.

Good luck and if it doesn't work I will give you $300.00 for it with he defect.
 
#4
Re: TRG Trigger help

Hello there and congrats on your new baby,

Here's my few thoughts on the trigger...

<span style="text-decoration: underline">Proper adjustment procedures</span>

1. Check that the weapon is free from cartridges and remove the bolt

2. Remove trigger unit as described in the user manual and clean it thoroughly.

3. Pull the safety on and adjust first stage pull weight against the safety to approx. 0.5-0.6 kg (small hex screw behind the trigger). Use loktite (222, 243 etc.)to prevent accidental loosening of the screw.
When you have the safety pulled on you can feel the actual first stage movement of the trigger before it comes in contact with the connector inside the trigger unit.

4. Assemble the trigger unit to the weapon. <span style="font-weight: bold">Never</span> have the bolt in the weapon when assembling and tightening the trigger unit in place. If you have it in place it will immediately cause damage to the trigger unit when sear is forced down against the connector by the cocking piece of the firing pin and cocking surfaces/ corners on the sear and connector will break/crack.

5. Adjust the final pull weight to minimum of 1.0kg (hex screw in front of the trigger). Use loktite on the screw.
Always have sufficient gap in between first and second stage pull, first stage should be approx. half of the final pull weight (0.5/1.0kg, 0.6/1.2kg etc.). If the two weights are set too close the cocking corners will get rounded and the weapon will not stay properly cocked causing hard and long single stage pull like you described.

6. After adjusting the pull weight check the functioning of the safety.
Cock the rifle and pull safety on ->bolt handle will not come up and trigger will only move the first stage travel.
Push the safety off and dry fire the rifle. Try pulling the safety on -> safety should bounce back to the front position and not stay on. If the safety engages when rifle is not cocked the safety lever inside the trigger unit is worn or too loose and should be re-tightened properly. Have trained gunsmith do this!

Do not over lubricate the internal parts of the trigger unit; small amount of very thin synthetic oil or dry lube will do the trick.

Two of the most common mistakes causing problems:
Improper adjustment of the first and second stage pull set too close to each other will wear the internal parts.
Assembling of the trigger unit to the rifle with the bolt in place will immediately break the internal parts.

Hope this helps and you'll get the trigger operational again?
If you're not able to adjust the trigger properly have the cocking corners in the trigger unit checked, they may be damaged already and the pull weight will not adjust properly...

Hope I didn't miss anything?
 
#6
Re: TRG Trigger help

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Jon Lester</div><div class="ubbcode-body">Not to worry you but in a match in Al. My TRG 22 trigger went to single stage and I couldnt get it right. It was about 15-22 lbs guessing and finaly wouldn't cock the bolt.
Good news was that Baretta replaced it and got it back to me in time for the next match. Not one penny out on my part and a note from the smith inside explaining that he tried to repair the trigger but it continued to fail so he replaced the entire group and set the trigger to 3#. I dropped that to Two.

Good luck and if it doesn't work I will give you $300.00 for it with he defect. </div></div>

Whe you set the final pull weight to 2lbs you have to adjust the first stage also to 1lb. I they are too close it will wear out and will become that 15-22lbs again.
 
#7
Re: TRG Trigger help

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Jon Lester</div><div class="ubbcode-body">Heck of a second post there 338! Excellent job,is that common knowledge or you got the manuel? My Sako book isn't that good. </div></div>

I've got a couple of years of inside information in my pockets
wink.gif
 
#8
Re: TRG Trigger help

Thanks for the info 338shooter. Is there a way to safely and reliably set the second pressure to less than the manual's recommended minimum of 1kg(2.2lb)? I recently adjusted mine to approx. 0.5kg, without changing the first stage as you suggest. This worked ok for some months but then changed to an intermittent very heavy single stage.
 
#10
Re: TRG Trigger help

Hi there,

You shouldn't go below that 1kg on the second stage or the thing you just described will definately happen. OK for some time but after a while will get very heavy.

I've seen some triggers adjusted to less than 1lb but this will require replacement of some internal springs and lots of fine tuning and polishing. NOT recommended unless you're a gunsmith and know exactly what you're doing.

I'd stick with that 1.0kg and over. All of the guns (TRGs)I usually shoot a pretty much set to 1.5kg. Not too light and not too heavy...and remember; If you play with second stage weight always do the same thing with the first stage!
 
#11
Re: TRG Trigger help

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 338shooter</div><div class="ubbcode-body"> If you play with second stage weight always do the same thing with the first stage! </div></div>
Will do. Thanks again.
 
#12
Re: TRG Trigger help

Well, I called BerettaUSA today, and they said I would have to send the entire rifle, minus scope, back to their facility in MD. Then, there's a minimum $70 charge to evaluate it. Not exactly what I was expecting. Does anyone know of a smith who can work on these other than Beretta? If I had my druthers, I would send off just the trigger group......

BTW, when I install my trigger group, I cannot get the safety to engage, regardless of whether the bolt is cocked or not. When I remove the bolt, the safety works just fine, albeit just a little loose.
 
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