1900 Mainspring

Dwight Gruber · 05-18-2008, 06:17 AM

John,

Fyi the "hooks" at the top of the spring must not be too long. I put a repro spring in a 1900 shooter, and the toggle kept jamming back. I finally figured out that at full recoil the hook-ends were jamming into the bottom of the breechblock, actually gouging it, and keeping it from returning forward. Judicious application of a file shortened them to the point where they no longer contacted the breechblock and everything was fine from then on.

--Dwight

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05-18-2008, 06:17 AM	#19
Dwight Gruber User Join Date: Jun 2002 Location: Portland, Oregon Posts: 3,908 Thanks: 0 Thanked 1,330 Times in 435 Posts	John, Fyi the "hooks" at the top of the spring must not be too long. I put a repro spring in a 1900 shooter, and the toggle kept jamming back. I finally figured out that at full recoil the hook-ends were jamming into the bottom of the breechblock, actually gouging it, and keeping it from returning forward. Judicious application of a file shortened them to the point where they no longer contacted the breechblock and everything was fine from then on. --Dwight