I took out the trigger action zackly ONE TIME from my 500 but since fergot how you do it
I don't even aim for the trigger action when I blast WD-40 in the action...
I would if I were you go to a 'smith and as previously said, have them show you... It shouldn't even cost you... my 'smith would do that fer free!
They also bore sight fer free as long as either the gun or scope was bought there... heck if you bought a box of ammo he would bore sight for you!
Brent