ATTENTION - YOU may have set trigger capability!!...

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LarryS
Posts: 189
Joined: Thu Nov 24, 2005 12:42 am

ATTENTION - YOU may have set trigger capability!!...

#1 Post by LarryS »

Just discovered a set-trigger mode on my 40+ year old Crosman 140 today!.

This may be true of many other rifles of all brands. Check to see if you have this feature or anamoly with your guns.

Here is the explanation and Qwik test:

1. Shooting many rifles have a long and sometimes rough pull on the trigger. Especially the older, cheaper rifles and pistols.

2. Ready to fire & with safety ON..... squeeze the trigger until it "Clicks" or you feel a detent. Do this with arm aimed in case it goes off on the test.

3. Assuming it did not go off.....slide the safety to ON....WITHOUT TOUCHING THE TRIGGER!.... VERY CAREFULLY touch the trigger WITHOUT pressing it in the slightest, as you get your final sight picture.

4. Now an EXTREMELY, EXTREMELY, light trigger pressure will fire the gun....You will not be ready for it unless you are still holding the sight picture. It will go off without any warning trigger feel.

My groups are now a dime to a quarter using "junky" out of the tin Daisy wad cutters........ AT 90 FEET with this old spoon Crosman at 7 pumps. (~600FPS). The firing touch cannot be measured.

Should I stand or kneel to be Knighted?..... -LarryS
<99% of the trigger pull is taken up with the safety ON. And this can lead to new ways to alter your guns for precision shooting.>
airgunfun
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Joined: Thu Sep 01, 2005 12:41 pm

#2 Post by airgunfun »

Same thing on my CZ631 and Webley Tempest.
Gotrice23
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Location: British Columbia

#3 Post by Gotrice23 »

Hmmmm. I wonder if this will work with the CP99/Nighthawk/CPSport?
airgunfun
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#4 Post by airgunfun »

Nope.
Gotrice23
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Location: British Columbia

#5 Post by Gotrice23 »

airgunfun wrote:Nope.
Damn....
Tailgunner
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Location: Wilkie, SK

Re: ATTENTION - YOU may have set trigger capability!!...

#6 Post by Tailgunner »

.{quote}
3. Assuming it did not go off.....slide the safety to ON....WITHOUT TOUCHING THE TRIGGER!.... VERY CAREFULLY touch the trigger WITHOUT pressing it in the slightest, as you get your final sight picture. {quote}

Or, when THAT doesn't work..........try sliding the safety to 'OFF" without touching the trigger.

SORRY..........couldn't help it :D

Cheers - Gus
LarryS
Posts: 189
Joined: Thu Nov 24, 2005 12:42 am

#7 Post by LarryS »

You got me.... Nice catch!! :lol: -LarryS
Marmot
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Joined: Wed Oct 05, 2005 4:29 pm

#8 Post by Marmot »

I remember reading a warning against doing this. It can supposedly make the gun unsafe to handle in that it could fire at any time once it has been cocked and loaded even if you haven't gone through the whole "safety dance" you outlined because the mechanism's been weakened.
airgunfun
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Joined: Thu Sep 01, 2005 12:41 pm

#9 Post by airgunfun »

You do this trick just before shooting. Caution should be exercised.
Marmot
Posts: 289
Joined: Wed Oct 05, 2005 4:29 pm

#10 Post by Marmot »

No, I mean that after doing this a number of times you've weakened the mechanism enough that it'll do it without you having to perform "the trick".

In essence, you've created a potentially dangerous hair trigger that could go off at the slightest bump or movement.

But like you said, do it at your own risk.
airgunfun
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Joined: Thu Sep 01, 2005 12:41 pm

#11 Post by airgunfun »

Not sure how it would weaken the trigger assembly....nothing is being forced....just taking up the slack before firing.
Suprmatic
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Location: home of the Marshville Festival, Ontario, Canada

#12 Post by Suprmatic »

Marmot wrote:I remember reading a warning against doing this. It can supposedly make the gun unsafe to handle in that it could fire at any time once it has been cocked and loaded even if you haven't gone through the whole "safety dance" you outlined because the mechanism's been weakened.
Absolutely correct !! The procedure outlined in this post is generally used to determine if a trigger group is working correctly in conjuntion with the safety mechanism. Quite often, the gun will fire at the very instant the safety is switched to the "fire" position, with NO action on the trigger. A light, unintended bump to the gun, or in some cases, just adjusting it's position on your shoulder can result in a discharge. Any of the above scenarios indicates that you repair or replace the needed parts.

Airgunfun said: "You do this trick just before shooting. Caution should be exercised".

Care should be exercised when performing the safety test, yes, without question!
However, this practice should not be used on a regular basis - only periodic testing, or testing a new-to-you used gun. Continued use of this "trick" will cause the trigger to eventually become unpredictable and unsafe. With over 3 decades of shooting to my credit, I have seen many "unintentional discharges" and resultant injuries directly related to this, or similar "trigger tricks".

A "sweet" trigger should not be the result of a compromised mechanical device that leaves the sear teetering on the edge of an unintentional discharge. Safety first - I'd hate to see anyone injured because of well intentioned, but bad advise.
Suprmatic
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Joined: Wed Oct 26, 2005 12:03 am
Location: home of the Marshville Festival, Ontario, Canada

#13 Post by Suprmatic »

airgunfun wrote:Not sure how it would weaken the trigger assembly....nothing is being forced....just taking up the slack before firing.
Incorrect - especially with spring guns. The sear engagement has been compromised, so instead of say, 0.060" engagement, you now have only 0.015" engagement. This places a much higher load - 3-4 times or more - on the edges of the sear, eventually rounding or chipping them. At some point, even with the safety ON, the gun will fire.
Suprmatic
Posts: 5330
Joined: Wed Oct 26, 2005 12:03 am
Location: home of the Marshville Festival, Ontario, Canada

Re: ATTENTION - YOU may have set trigger capability!!...

#14 Post by Suprmatic »

LarryS wrote:Just discovered a set-trigger mode on my 40+ year old Crosman 140 today!.

This may be true of many other rifles of all brands. Check to see if you have this feature or anamoly with your guns.

Should I stand or kneel to be Knighted?..... -LarryS
<99% of the trigger pull is taken up with the safety ON. And this can lead to new ways to alter your guns for precision shooting.>
1) It is an anomoly (or defect) - a very dangerous one.
2) With only 1% sear engagement, sounds more like an accident looking for a time and place, not precision shooting.
3) A court summons can be served to you, standing or sitting.

Larry, your procedure is a good one, but in the interest of saftey, I would suggest that you edit your post to show that your intention is to check the gun for correct operation of the safety.
Marmot
Posts: 289
Joined: Wed Oct 05, 2005 4:29 pm

#15 Post by Marmot »

Woah, easy on the poor man. :oops: :lol:

Now that he knows it's dangerous I'm sure he'll re-think the whole thing through, no need to get all "court summons" on him. :lol:
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