Start with a trigger upgrade, unless you got lucky from the factory.
Volquartsen, TandemKross, Power Custom, Clark, and a host of others can get you set up.
Most folks think a good hammer does the most good, followed by the sear, etc.
Aftermarket hammer kits start at about $35, then the prices go to hundreds for some top of the line complete drop-in trigger groups…
Ruger also sells a "BX" drop-in trigger group for about $60-90, depending upon whether you can find them on sale. They're generally not considered to be the best choice, but they're a quick and dirty option for those who want to improve their trigger in just a few minutes. If you find them on display in a retail setting, you can actually try them out, and select the individual unit that you like best.
It rubs me the wrong way, though… I think that Ruger ought to be including these in their new rifles, vs. selling us crap triggers with the intention that we'll spend big money to upgrade.
