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trigger adjustment advice for short finger

Posted: Sat Sep 19, 2009 9:09 pm
by tallahassee
I have adjusted my LP10 trigger gazillion times. I could not find a perfect trigger for my finger.

I have trigger shoe adjusted as far back as possible for my short finger . The trigger shoe is far back because I like right edge of trigger on my first finger joint. Trigger shoe is flat, not rotated right or left. But at this adjustment, the front sight would twitch slightly left during dry-fire. I can feel my finger is probably putting pressure more on the left side of the trigger shoe. But if I rotate trigger shoe slightly left, the pressure on the left side of trigger from my finger is relieved. I can pull without disturbing the front sight alignment.

Am I forming a bad habit by turning trigger shoe slightly left with this far back trigger setting? Classic teaching is to have a flat trigger shoe. But I like my trigger to be on my first finger joint. To achieve this, I have to move my trigger all the way back, which resulted in more pressure on left edge of trigger, which is solved with rotating trigger slightly left.

Is this arrangement all right? I think I will shoot well with this. But once I get used to this, would I have problem shooting any other gun with flat trigger adjustment?

I am just sick of adjusting my trigger to find "it". One more adjustment, I am afraid my trigger might break.

Just wonder if some of you triggernometry professors can give me some tips.

Post Subject

Posted: Sat Sep 19, 2009 10:15 pm
by 2650 Plus
Your discription of your problem and solution is IMO solid work. As the sights are no longer moving as the sear disconnects I think you should head for the range for extensive testing. Thats always a lot more fun than dryfiring and may prove that you have a solution to the problem. Good Shooting Bill Horton

Posted: Sun Sep 20, 2009 2:28 am
by GaryN
You might also consider replacing the LP10 trigger blade w the LP1 trigger blade. It does not have the adjustments of the LP10 blade but will have the part where you rest your finger further back than the LP10s blade.

But in the end, if you can pull the trigger w/o moving the front sight, that is all that matters.

Trigger Finger Position

Posted: Wed Oct 07, 2009 3:30 am
by Popeye
Have you considered what the best position is for your trigger finger?

See the attached image illustrating that the trigger should be pulled straight back by positioning the trigger against the flat part of the finger in a distal position from the joint. You may struggle to get a straight pull back of the trigger using your finger joint.

Does this make any sense to you?

Posted: Wed Oct 07, 2009 8:34 am
by Tallahassee
Very clear picture.

Which "textbook" did this picture come from?

Posted: Wed Oct 07, 2009 10:57 am
by RobStubbs
As per the picture above, the trigger should be on the flat of the finger as in a) - if you move your finger to the optimum place, that should help you and in more than just reaching it. You can always remove the trigger she completely and just use the retaining rod. A little unorthodox but I've seen people do that when they have no other way to reach the trigger properly - and do so very well.

Rob.

Posted: Wed Oct 07, 2009 7:55 pm
by Gwhite
I'm investigating a possibly similar problem with my daughter. She is now shooting my Benelli MP90S, and I got her small Rink grips. With no pressure on the trigger, her finger is positioned as in Figure (a). Most of the time she shoots reasonably well. However, especially when she shoots sustained fire, she tends to shoot to the right. I've watched her closely, and I can't see that she's getting her thumb in the act.

I've been wondering if she is pulling the trigger sideways. It seems to me that for a trigger with significant movement (which is the case with the Benelli), that you would like Figure (a) to apply when the trigger is to the rear, just as the shot breaks. This means that the trigger will be slightly forward at the beginning of the squeeze, a tiny bit like Figure (c).

I'd be curious if anyone has any thoughts on this.

Posted: Wed Oct 07, 2009 11:37 pm
by David Levene
Gwhite wrote:I've been wondering if she is pulling the trigger sideways. It seems to me that for a trigger with significant movement (which is the case with the Benelli), that you would like Figure (a) to apply when the trigger is to the rear, just as the shot breaks. This means that the trigger will be slightly forward at the beginning of the squeeze, a tiny bit like Figure (c).

I'd be curious if anyone has any thoughts on this.
You are correct.

Posted: Thu Oct 08, 2009 2:13 am
by RobStubbs
As David says that is correct. That's an awful lot of first stage travel if it goes from almost c) with no pressure to a) at the point of shot break.

Is it not possible to reduce the travel ?

Rob.

Posted: Thu Oct 08, 2009 2:51 am
by Tycho
The Benelli's I've seen so far have no adjustment of 1st stage travel. On the other hand, I'd say that the position at the beginning of the movement is not really all that relevant. From my understanding, to get shots to the right via trigger, one would have to have situation b), which is not all that common and usually easily corrected. Not to change the topic, but the Rink grips I know are all hanging to the lower left (at least that is my impression when holding them), and tend to pull to the right when the forearm muscles get seriously engaged during rapid fire or so (something I've seen with several people in my club).

Posted: Thu Oct 08, 2009 5:53 pm
by Gwhite
Good point. I should check how the grip fits. She's getting good enough that small things like that are becoming important.

I need to give her pistol a bath this weekend, and I may scoot the trigger back just a hair while I'm at it.