I don't use the bullets or powder you do (Varget and SMK 69's in my 7 twist Mini), but if you've never been over to the Perfect Union forum you can probably find the info you're seeking there...
Trigger job doesn't help the rifle, but definitely helps the shooter
. I did my own, 3 lb. pull, no creep and just a hint of takeup.
Which model Mini do you have?