yea it's a bit tricky, I am assuming you have the wood stock and if so that makes it a bit easier to work with, here is the best instruction I can give you.
Remove the front pressure point on the barrel, when you do you will see that the barreled action will sink deeper in the stock, this is normal as the inlet under the front of the action is usually a little deeper so that when tightened up it actually flexes the stock to put alot of pressure on the barrel.
When you remove the pressure point you still want the barreled action to have the same show line as it did with the pressure point, use the tape to get it to set in at the same level.
open up the front screw hole to accept the pillar with a little wiggle room, epoxy will fill the void and the wiggle room is essential to get the proper alignment and placement of the barreled action.
open the rear hole for the pillar and dry fit everything so nothing binds. Dry fitting is SOOO important so you don't end up with a mess.
putty and tape off everything necessary so you don't glue it in with a mechanical lock.
put a bit of tape around your screws where they will center in the pillar and not cover up the threads that need to screw in the action. make sure to dry fit that way. also make sure you don't have so much tape they wont go thru the bottom metal holes. if all else fails you can drill out the pillars for clearance after all the epoxy has set in 24 hours.
grease your screws so they dont glue in.
release agent on action and bottom metal
place your bedding and place your pillars in the stock/bedding.
clean out the inside of the pillars of any glue before inserting the action.
I like to stick a cut off q-tip in the actions front and rear thread hole when inserting the action and pressing it in the bedding. I then pull them out thru the pillars to remove and epoxy that pushed into the pillars when you inserted the action, careful not to pull the pillars with the q-tip. you almost need 3 hands to do all this, get creative with holding it in a vise so your not fumbling with the gun. A tip of a knife against the pillar as you pull the q-tip will help keep the pillars in place.
if alot of bedding squished into the bottom metal inlet remove the excess then place the bottom metal and instal your greased action screws.
now don't overtighten or you will stress every thing just lightly snug them so the bottom metal is flush and the action is at original show line.
These are some of the hardest rifles to bed so take your time and think it thru.