Buck,
If your bores, and in particular the chambers, are still oiled the back thrust on the action face is increased on the first shots (R1 and L1 in this case, the increased horizontal dispersion moving away from the centre of gravity).
While it will not do any harm with your rifle, with a more powerful round and a weaker action it can cause damage especially if the case is tapered. .303 Lee-Enfields have been known to shear off the smaller locking lug when shot “wet”.
Swabbing the bore and chamber with either a dry patch, or better yet a patch soaked in lighter fluid and then a dry one, should remove the problem and avoid disturbing the game (or neighbours) with a fouling shot.
If I am going stalking on consecutive days and the rifle hasn’t got wet I leave it fouled till the session has finished.
Parabola
