Friday, August 11, 2017

Trigger Measurements - Part I

About a week ago, I was cleaning my two TP9SA handguns.  They're both identical but when actuating their triggers, both seemed to have different weights, to a significant degree, which kind of bugs me.

I decided to buy a Lyman trigger gauge.  I picked it up this morning and decided to check the triggers before I went to work.

Here's what I found:

Canik TP9SA (black) - 3lb 11oz, average of 5; got as low as 3lb 9oz
TP9SA (tan) - 4lb 11oz, average of 5; got as low as 4lb 5oz
That's a pretty drastic difference (1 lb).  Tan gun's trigger is noticeably stiffer, which is why I decided to buy a trigger gauge in the first place.  I looked at the trigger bar and it appears it may be rubbing against the frame.  I'm not going to mess with it, though.

I then decided to check some of my other handguns:

Tristar T-100 - DA is 11lb 10oz, average of 5; got as low as 11lb 9oz (was difficult to measure the trigger evenly, since the pull is so strong and the trigger is curved upward).  SA is 4lb 12oz, with the lowest of 5 at 4lb 4oz.
Grand Power P-11 - DA is at 8lb 3oz, average of 5; got as low as 8lb even!  SA - 3lb 10oz, with a lowest of 5 at 3lb 1oz!  DA is super smooth and was easy to get a reading.  In half-cock, the DA got an average of 7lb 13oz.
Sig Sauer P220 Equinox - DA is average of 10lb 2oz; SA is average of 5lb 7 oz.
Sig Sauer SP2022 - DA is average of 7lb 12oz with lowest of 5 at 6lb 6oz (pulled fast and smooth).  SA is average of 4lb 4oz with low of 3lb 9oz.
Note that most of these guns have low round counts, especially the P220 and Caniks.  The Grand Power has over 1200 rounds through it, which is probably one reason why it's so smooth (but it was a stand-out even when brand new).

Stay tuned for Part II, where I measure the triggers of my other handguns.