Installed a new #12 rebound spring in my my Model 19-4. Kept original hammer spring. My last trip to the range I experience a couple of light primer strikes. Strain screw is all the way tight. I didn't think a rebound spring would affect hammer spring strength. Any ideas? Thanks, c good
Can lighter rebound spring cause lighter primer strikes?
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john traveler
Member
The tension of the rebound spring has nothing to do with the strength of the mainspring, but it does affect trigger pull "balance" and recovery during the DA cycle.
Check to make sure that your mainspring tension screw is full-length and has not been previously ground down. That is commonly done during action jobs, and may be the reason for your light primer strikes. A simple expedient is to place a fired primer on the tip of the screw to give the mainspring more tension. If that works, then a replacement screw or mainspring is in order.
Check to make sure that your mainspring tension screw is full-length and has not been previously ground down. That is commonly done during action jobs, and may be the reason for your light primer strikes. A simple expedient is to place a fired primer on the tip of the screw to give the mainspring more tension. If that works, then a replacement screw or mainspring is in order.
cgt4570
Member
Like John said.
In a word: NO
In a word: NO
500 Magnum Nut
Member
If you put a light rebound spring in the gun, the trigger won't reset, normally. So to fix that you lighten the main spring and then the action is fixed, but now you got misfires with dents on your primers.
It can happen if you lighten the main spring.
A simple fix to strengthen the main spring is to take the hammer spring out and make sure it lays flat on your table. A straightened, flat spring will yield more tension than an old bent spring. Use a hammer and tap it flat is all you need to do.
Without strengthening the hammer, you can try Federal primers to solve the light primer strikes. Also fix the endshake & keep under the extractor clean and dry.
There is a fine line getting the action and primers to work as intended.
It can happen if you lighten the main spring.
A simple fix to strengthen the main spring is to take the hammer spring out and make sure it lays flat on your table. A straightened, flat spring will yield more tension than an old bent spring. Use a hammer and tap it flat is all you need to do.
Without strengthening the hammer, you can try Federal primers to solve the light primer strikes. Also fix the endshake & keep under the extractor clean and dry.
There is a fine line getting the action and primers to work as intended.
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