Toggle sticking open

[Military Engineer]

Originally Posted by spangy

I immediately think weak/short mainspring. Maybe try your old original spring again.
Also check the frames breach block slider grooves for dirt/debris.

You also state the gun has been re-barreled within the last 8 years, with the receiver axle pin removed check that the breach block and toggle link assembly slide easily along the length of the receiver without feeling any abnormal resistance. Re-barreling puts incredible stress on the receiver if not done by a competent gunsmith with proper tools for the job.

Good luck.

The main spring has 22 rungs on it. I wonder if that makes much difference, given I think the standard was 19 for the WW1 military ones?

I am considering a main spring (I've been reading up on the subject here in the forum). It just seems like the spring is pretty stout and I believe it was replaced about the same time as the barrel.

I will check the fitting. There is a little resistance to the bolt going back into the forks when I reassemble, but it hasn't been a problem up to now. I always thought that was there to slow the bolt to aid the mainspring in preventing it from slamming back into the rear of the frame. I mentioned to another poster here that I might consider hand stoning with a fine stone the rail grooves in the fork and the rails on the bolt to smooth out/polish/open up the tolerances. It long been a shooter grade, so I'm not horribly worried about ruining collector value. Just do it slowly until the resistance goes away.

Mark