Hammer falls to half cock when trigger is pulled

[bigwagon]

This is different than the typical half cock question and I couldn't find an answer by searching. I was function testing an older Colt Series 70 GM at a shop and one time when I dry fired it, the hammer fell and stopped at the half cock notch. This particular gun had an aftermarket trigger with an overtravel screw and I was wondering if it is possibly related to the overtravel screw being adjusted too far in? I am guessing the hammer would only stop at the half cock if the sear wasn't released far enough.

[Pappy]

This is different than the typical half cock question and I couldn't find an answer by searching. I was function testing an older Colt Series 70 GM at a shop and one time when I dry fired it, the hammer fell and stopped at the half cock notch. This particular gun had an aftermarket trigger with an overtravel screw and I was wondering if it is possibly related to the overtravel screw being adjusted too far in? I am guessing the hammer would only stop at the half cock if the sear wasn't released far enough.

Will this help??

http://www.m1911.org/technic_forum.htm

Click on:

How to function-check an M-1911 (courtesy of D. Camm) (javascript:redirectWin4('technic25.htm'))

Pappy

[AnthonyRSS]

I would put money on the overtravel screw being the culprit.

Anthony

[John]

Yeap, what Anthony said. Back of that screw a turn or so and check again.