Assuming you’re referring to the Browning X-Bolt rifle, there are a few things you can do to adjust the trigger.
First, take a look at the owner’s manual that came with your rifle. It should have specific instructions on how to adjust the trigger. (If you don’t have the manual, you can usually find it online.)
If you’re not comfortable making any adjustments yourself, you can always take it to a gunsmith or someone who is experienced with rifles. They should be able to help you make the necessary adjustments.