Seeing that Moose got mickeyed on his EV2, here are some of my comments on the my 400.
Back to Front:
Height adjustable buttplate fitted.
New scope mounts
HP cylinder fitted
Aluminium removable hamster fitted
Level fitted as "piggyback" on scope
Barrel extension with baffles and angled ports.
Side wheel fitted to NS 8-32X44
Accurate at 25m seated with groups-sub 6mm if I do my part on 3 shots.
Quieter but louder than with silencer.
Cheek rest to eye height perfect.
Now mistakes are the shooter's problem