Has anyone tried the lighter 9 lb. Wolff mainspring in their DA only 43C? Not sure what the factory spring is-(#12 lb. for other J frame rimfires.)
If so, any reliability issues.

I used a 9 lbs main and a 13 lbs rebound (wolf). Much better than stock but its still a bit hard-its a rim fire.I get almost 100 % with most ammo. I tried 8- 8.5 mains and whatever other rebounds where in the kit and settled on the above. I smoothed and radius ed the trigger surface and shot the heck out of it. It is much better but not a center-fire. Hope this helps.

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T. Johnson

Its a 99 plus % with CCI Velociters which is my user load-bulk ammo varies ??

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T. Johnson