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Author Topic: What kind of Trigger Pull Measuring system do you use?  (Read 26398 times)

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Offline afss

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What kind of Trigger Pull Measuring system do you use?
« on: October 18, 2010, 12:40:22 PM »
I was asked to advise about the purchase of a Trigger Pull Measuring system.
On the seldom occasions I need to measure it, I use weights. Since I am a little bit "out of the loop", I would like to hear from you, what kind of Trigger Pull Measuring system do you use?  ::---
Lior, Israel
Talk softly and cary a big gun!

Jerryp

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Re: What kind of Trigger Pull Measuring system do you use?
« Reply #1 on: October 19, 2010, 05:34:28 AM »
I use dead weights and the NRA method

Offline Matthew Kurimsky

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Re: What kind of Trigger Pull Measuring system do you use?
« Reply #2 on: October 19, 2010, 09:24:46 AM »
I use the same method as Jerry. We can also use spring or digital scales.
the .223/5.56 round has such little wounding potential, it actually causes negative damage.

it has been shown in laboratory tests to heal bruises, small scrapes and cuts, and in one instance, it unhurt someone's feelings.

Offline Garry Lawrence

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Re: What kind of Trigger Pull Measuring system do you use?
« Reply #3 on: October 19, 2010, 10:15:56 AM »
We use a Imada Model DPS-44 Digital Force Gauge with a Imada wheel-operated test stand Model SH-110.
Garry R. Lawrence

Offline Tori Kujala

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Re: What kind of Trigger Pull Measuring system do you use?
« Reply #4 on: October 19, 2010, 11:29:15 AM »
We used to use dead weights or a spring loaded trigger pull gauge.  However, since I was the only one using the dead weights, they were removed from service.  So...I guess the answer would be "spring loaded trigger pull gauges"?   :-X
Tori Kujala
Forensic Firearm Consultants, LLC
8505 Prairie Rose Lane
Fort Worth, TX  76123
817-528-5520

Offline Brian Smelser

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Re: What kind of Trigger Pull Measuring system do you use?
« Reply #5 on: October 19, 2010, 11:59:24 AM »
We use dead weights or spring trigger pull gauges (like fish weighing scales with out the smell and corrosion).  Sometimes they do double duty here in the Northwest.
Washington State Patrol
Seattle Laboratory
206-262-6032

Offline Erwin Borgers

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Re: What kind of Trigger Pull Measuring system do you use?
« Reply #6 on: October 20, 2010, 03:17:26 PM »
Lior

Often dead weight will do the job. When the trigger pull is really a big issue (i.e. accidental discharge) , in my opinion one should  consider triggertravel in combination to triggerpull.

Thats why I use dead weights and where neccesary the Trigger Scan.   

Erwin

Offline afss

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Re: What kind of Trigger Pull Measuring system do you use?
« Reply #7 on: October 21, 2010, 02:14:05 AM »
Hi Erwin,

Exuse my ignorence, what is Trigger Scan?

And another question: Does anybody uses computerized system?
We had one, in the Israeli lab., which showed the force evaluation on the computer screen. But we had to measure the results from it and write them by hand. (Well, we are talkink about the AT model!)

Lior
Talk softly and cary a big gun!

Offline Charles Clow

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Re: What kind of Trigger Pull Measuring system do you use?
« Reply #8 on: October 21, 2010, 09:19:13 AM »
We use the Trigger Scan System in our lab.

See link.

http://www.dvorakinstruments.com/

CMC

Offline Axel Manthei

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Re: What kind of Trigger Pull Measuring system do you use?
« Reply #9 on: October 21, 2010, 01:15:56 PM »
... and www.triggerscan.com
for the European and surrounding countries.

 :D

Axel

Offline Steve Ostrowski

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Re: What kind of Trigger Pull Measuring system do you use?
« Reply #10 on: October 22, 2010, 12:51:03 PM »
We use the Imada model #FB-30 Push/Pull gauge.   

Steve Ostrowski
NHSP Forensic Lab
33 Hazen Dr.  Concord, NH 03305  
ph. 603.223.8352
stephen.h.ostrowski@dos.nh.gov

Offline Jim Hamby

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Re: What kind of Trigger Pull Measuring system do you use?
« Reply #11 on: October 24, 2010, 10:22:01 PM »
Hi all,

I use an Imada DPS-44 (it now has a new model number) which locks the measurement 'in' for reading. Some of the laboratories that I have worked with has - at my recommendation - started using this devise.

Warm regards,

Jim
Dr. Jim Hamby

Offline afss

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Re: What kind of Trigger Pull Measuring system do you use?
« Reply #12 on: October 27, 2010, 11:24:11 AM »
Hi all,

Thank you very much for those who took the time to answer.
I looked at the TriggerScan specifications and it seems very sophisticated and "fit" to its purpose, but it is quiet expensive.
I also found out about the use of Force gauge, with data output to a computer, and it is also does the job.
So I guess that the decision will depend on the number of tests there are going to be.
Once again, thank you and I hope others benefited from my inquiry.
Lior
Talk softly and cary a big gun!

 

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