Congratulations! Very nice gun. That Talo French Walnut Sporter is on my bucket list . Back to your trigger. The grit ,is from the sear rub on the cut out in the safety. Unload the gun , cock the action, put onthe safety , then see if the safety urns a little ,id itdoes , center it. The spray the trigger group out with an air hose or a spray can , likegun scrubber, then hornady dry lube.