yes, I lightened up the pull on my rossi .223hb. I have it at about 1 1/2lb and made it smoother,its real nice now.
One thing is to just hone the parts,dont file anything.I filed the hammer angle wrong and the sear would not engage at all......so, I refiled to the correct angle and honed it.That got it working again. I thought I would have to replace the trigger but luckily didn't. Even though the file work was very slight,just to remove some roughness,I don't recomend it.
I have a print somewhere I'll find and post it with more info on this.But, I need to dig through my work room first. I should respond soon with it.
gooser