[SouthGun]

I was testing my new KimberEclipse using this information. The rear area of the lower barrel lugs do not ( have never ) touched the horizontal filed area in the frame, but contact is shown on the vertical area between barrel and frame. IT APPEARS, from the burnishing of the slide stop rod, that the rear travel of the barrel is being stopped by the mating of the slide stop's rod with the matched curved area in the barrel's lower lugs, but not by the link - this situation seems to differ from the problem described below, but I am still not sure if this is correct or not ...

Thanks for the assistance

-------------------------------------------------------------------------------- http://www.schuemann.com/
Scheumann Barrel Timing Tests ...
Possible problem number two is created if the impact surface in the frame, that the barrel's lower lugs hit, is too far rearward. This changes the above description in the following way.
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As the slide and barrel move rearward, the link rotates about the slide stop pin and starts pulling the barrel down, thereby unlocking the barrel from the slide. After the barrel is completely unlocked from the slide, the barrel continues moving downward and rearward, and has its vertical motion stopped when the bottom of the barrel hits the top of the frame. The link then stops the barrel's rearward motion before the barrel's lower lugs can contact the impact surface because the impact surface is too far rearward in the frame. The link is not designed to stop the rearward motion of the barrel, and the extra stress will eventually break the link

 

[SouthGun]

I just retested my barrel - what I stated about the lug wear was from the Forward travel not reverse. And, the barrel seats both vertically and rearwards into the frame and I can install the frame stop without problems - I think I did not perform the test correctly

 

[SouthGun]

I did some more tests - the slide pin wear is from Forward travel. The barrel can be set into the frame aft and down, and the slide pin easily installed - I am not sure I performed the test correctly. It appears that, even though the test showed problems, I am not loading the link in rearward travel.

Regards !

 

[SouthGun]

Hello Rick,
I am more just trying to 'learn the 1911' and was a bit shocked when the marker did not show that the rear vertical surface of the barrel lugs and the frame were touching !! Subsequent tests with a thin piece of aluminum tape showed there was proper contact - the magic marker just did not 'rub off' by pressure contact.

The gun shoots well, lets hope my experiments do not degrade it too much <laugh>

So far, the polishing up of the action group
has yielded a nice result

( the sear-hammer interface is still stock )

Thanks,

[This message has been edited by SouthGun (edited 09-04-2001).]