Mainspring Question

[Spark Shooter]

My shadow is a stock canadian model. I've read through all the spring posts and I can't find a consistent answer for the Shadow stock spring. I can gather that the stock mainspring is ~18lbs, i had the trigger pull tested by a smith, and the SA averaged 3 lbs 11oz and the DA was higher than the scale would read (max 12 lbs digital scale). I'm assuming due to leveraging reduction I won't get a  1:1 reduction if I drop the mainspring to 15lbs, what is everyone getting trigger pull down to (without a trigger job), should I expect around an 8-9lb DA pull now? With the SA it shouldn't change too much due to the SA being predominantly affected by the sear? Thoughts?

[Stuart]

if you drop to a 15# to 13# mainspring. IIRC you will get it into the 8# range and the SA should drop to around 3# ( less pressure on the hammer pushing onto the sear.)  This is without doing any other polishing.

[Spark Shooter]

So a 15 or a 13 lb spring would get me about 8 lbs DA and 3lb SA?

[Canuck44]

I changed mine out to a 13# spring.  DA pull is just over 5#s, just enough to get you past the IPSC 5# test for trigger pull.  I have had no problems with light hammer strikes using the 13# spring using Win, Fed, and CCI primers.  Remington primers seem to be harder, or the last batch I had were and don't use them anymore.

Take Care

Bob

[Spark Shooter]

Thanks Bob, that's the answer I was looking for. I don't use Remington only CCI or Federal. I'll switch it out and run some through at practice this week to check reliability. Do you run an 11lb recoil spring as well?