In my experience the biggest issue with maintaining zero is the bedding of ones action. If bedded properly in a stable stock, there is no flexing of ones action with disassembly and reassembly for a thorough cleaning. Anything short of perfection in that realm and one will need a very scientific approach when it comes to torqueing action screws. If not so, then it's another session of chasing zero at the range when things are reassembled.
Do agree that proper scope installation is important too. Had a couple days of frustration years back when a windage screw in a Leupold mount came loose. Had me chasing a horizontal spread for about 15 rounds.
Not a tape advocate either, but I have used silicon seal with a heavy scope attached to a heavy kicker (30-378).
BigDave39355:
I don't care who you are. That there is funny!
Last edited by 1minute; 01/18/18.
