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Jim Gillilan's Custom 1322 Carbine

Jim Gillilan's Custom 1322 Carbine w/Custom Stock

Here's one I'm especially proud of and is modded all over, doing 12fpe at 15 pumps.
Stock is Teak from Thailand and super light weight 1322 Carbine!

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TKO 1911 Blade + Adjustable and Non-Adjustable SuperSears

April 28 2017 at 4:12 PM

Steve in NC  (Login pneuguy)
Crosman Forum Member
from IP address 162.198.201.47

My sample 1911 trigger sample arrived yesterday (thanks, Mike!) and today I got a chance to do a little quick testing. The results...

Combination #1: Stock Crosman blade + Non-Adjustable SS
1st stage: 15oz.
2nd stage: 1lb, 6oz.

Combination #2: TKO1911 + Non-Adjustable SS
1st stage: None.
2nd stage: 1lb 8oz.

Combination #3: TKO1911 + Adjustable SS
1st stage: 13oz.
2nd stage: 1lb 6oz.


Pictures...

Stock Blade + Non-Adjustable SS

[linked image]

TKO1911 + Non-Adjustable SS

[linked image]

TKO1911 + Adjustable SS

[linked image]

Adjustable SS adjustment screw access

[linked image]

Stock Blade + Cocked SS showing alignment of blade and sear

[linked image]

TKO1911 Blade + Cocked SS in position above, showing difference in alignment, explaining absence of 1st stage

[linked image]


 
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Bio
(Login Biohazardman)
Moderator
71.236.167.69

Re: TKO 1911 Blade + Adjustable and Non-Adjustable SuperSears

April 29 2017, 12:17 AM 

Nice job Steve and great results for whatever trigger you choose as well. Thanks for doing the werq so the rest of us slackers don't have to. ;^) Oh, and thanks for the pics you know need them.
I used to have a life. But now I have the forum. I am a sick man?

[linked image]


    
This message has been edited by Biohazardman from IP address 71.236.167.69 on Apr 29, 2017 12:28 AM


 
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cobalt
(Login cobalt327)
Crosman Forum Member
68.184.158.177

Interesting...

April 29 2017, 10:32 AM 

Is there a difference in trigger pre and over travel when using the adjustable sear with the stock and TKO trigger?


    
This message has been edited by cobalt327 from IP address 68.184.158.177 on Apr 29, 2017 10:35 AM


 
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Steve in NC
(Login pneuguy)
Crosman Forum Member
162.198.201.47

If "pretravel" is defined as initial movement of the trigger blade that produces no...

April 29 2017, 2:47 PM 

...movement of the sear (which is my preference), then none of these combinations produced any. The sear is visible when the grips are removed, so it's easy to watch and see that every mm of blade movement produces corresponding motion of the sear.

What changes is the ratio of blade to sear motion -- high during the 1st stage, low during the 2nd.

Overtravel was comparable for all.

 
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Mike T
(Login TKO22)
Crosman Forum Member
68.15.228.128

I have a new in the clamshell 1377...

April 29 2017, 11:09 AM 

i'll test it in. 3 screw frame.

I'm out shooting in a trapshoot today and tomorrow, but should get some time Monday to fiddle with it.

Is the gun cocked in pics 1 and 2?

 
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Steve in NC
(Login pneuguy)
Crosman Forum Member
162.198.201.47

The gun was uncocked in pics 1 and 2, but really...

April 29 2017, 2:52 PM 

...there's so much slop in the pivot pins when the side cover is removed that part positions aren't representative of what they become in the fully assembled action, anyway.

Meanwhile, I'm working up my courage to post one more picture, revealing a gruesome deed I committed to get your trigger to have a proper 1st stage in combination with the non-adjustable SS.

But first you have to promise not to yell at me. wink.gif

 
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Mike T.
(Login TKO22)
Crosman Forum Member
68.15.228.128

No yelling... All good...

April 29 2017, 4:10 PM 

There may be some fitting involved with the 1911 even with the factory sear. I noticed several early 2240 2-screw frames had slight differences in the location and diameter of pin and screw bosses, etc.

The 3-screw frames "seem" be be more consistent.

Some filing, grinding, welding, hacksawing, a bit of chewing gum and some vasoline or K-Y might be required on parts (and/or people) designed without consideration of other related enhancements!

I sent 2 triggers, so you have a "control" and a trial part.

Mike

P.S. It's freezing and raining here ... been outside all day. I'm whupped.

 
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Steve in NC
(Login pneuguy)
Crosman Forum Member
162.198.201.47

Okay. Remember - you promised - no yelling - and "beauty is as beauty does" and...

April 29 2017, 4:31 PM 

...the 13oz 1st stage and 1lb, 4oz 2nd stage that the (ahem) "modified" blade below achieved are actually kinda' pretty. happy.gif

[linked image]

 
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cobalt
(Login cobalt327)
Crosman Forum Member
68.184.158.177

Function over form

April 29 2017, 7:32 PM 

is applicable here, but considering there's nothing to be seen on an assembled gun anyway, it's all good- form AND function! And it's the first thing I thought that could be done when I saw the photo of the overlapping sear and trigger. Anyone who's fitted FCGs into 1911 pistols (of the PB type) wouldn't see material needing removed to fit the parts as out of the ordinary except maybe the amount of material removed.

In any event, thanks!

 
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WyoMan
(Login WyoMan)
Crosman Forum Member
65.131.49.108

Looks like you lost your safety ball with all that trigger work

April 29 2017, 7:51 PM 

Thanks for "taking one for the team" happy.gif Seriously, nice job with the pics, composition, etc. I think you could have also ground the bottom of the 1911 unit (where it establishes the preset), to have enough travel for the first stage. Thanks -

Wyo


 
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Steve in NC
(Login pneuguy)
Crosman Forum Member
162.198.201.47

You're right about that darned safety ball, but wrong about grinding the bottom...

April 29 2017, 7:58 PM 

...of the blade being an option (I think), because when the sear is cocked, the lobe of the blade that contacts the sear is bottomed out against the opposing side cover screw boss.

So either the lobe or the sear have to lose material -- at least that was my take -- unless of course you wanted to grind both bottom of lobe and blade.


    
This message has been edited by pneuguy from IP address 162.198.201.47 on Apr 29, 2017 8:04 PM


 
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WyoMan
(Login WyoMan)
Crosman Forum Member
65.131.49.108

Ok, that makes sense...

April 29 2017, 8:23 PM 

given that, I would have done the same (including the loss of safety ball)...lol

Removing material from the sear would probably be the last resort...

Wyo


 
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Steve in NC
(Login pneuguy)
Crosman Forum Member
162.198.201.47

That was my take, especially considering that due to the difference...

April 29 2017, 9:35 PM 

...in the respective radii of the arcs they move in relative to the area of contact, there's a good deal of sliding friction between lobe and sear. Seemed like that would require a fairly accurately linear profile of the new surface if you chose to reshape the sear and expected smooth movement.

A glance at the photo above suggests how likely accurate linear profiles would have been. LOL!

 
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cobalt
(Login cobalt327)
Crosman Forum Member
68.184.158.177

Polish?

May 1 2017, 9:04 AM 

I would be happy to put a mirror polish on the parts for you, gratis.

 
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Steve in NC
(Login pneuguy)
Crosman Forum Member
162.198.201.47

Wow! A very generous offer, Co. Thanks! But I'd hate...

May 1 2017, 4:44 PM 

... to take unfair advantage of your kindness, besides which there's the outcome of experiments with surface finish, which suggest that it really makes surprisingly little difference to pull weight.


    
This message has been edited by pneuguy from IP address 162.198.201.47 on May 1, 2017 4:45 PM


 
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Mike T.
(Login TKO22)
Crosman Forum Member
68.15.228.128

I didn't get time today to get after any testing...

May 1 2017, 6:08 PM 

but will have tomorrow evening to get after it.

Mike

 
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