New gun, New land, And a thankyou to the forum :)

[csmiffy]

This. Two extra tricks.
- Put an unprimed case in the breech and bore sight through this.
- The target boresighted for is best round and just short of filling the "muzzle ring". Think soccer ball to ensure it's far enough out not to matter with the difference in bore/sight axis. A tennis ball fills the muzzle ring at about 10m in a .30 cal so is too close.

i did that with my 416. Bore sighting with a barrel that size is problematic. slight shift in head changes it quite a bit. almost like paralax.
Had a case with a split neck (initial loads made from 375h+h cases) so popped the primer out of that one