I don't know what the armory spec was for the 1903. I'm sure it was a little better than the M1 (which shot the same round). IIRC, the M1 was spec'd at about 2-3" at 100 yards and wasn't reworked until the group opened to 4" or so.

In trying to find out some accuracy information, I did discover that Wolff sells Blitzschnell striker springs in various strengths that may decrease lock time, which is fairly long in an '03. That might help an old shooter like me who ain't quite as steady as he once was. The factory spring was 16#. Wolff has them up to 30# ratings, but I suspect the really high rates might be a bit harder on the bolt and cams.

After measuring mine and finding it to be 4.4" and seeing that a 20# Wolff is 4.955", I figure mine might be a little tired, so I ordered a 20# spring to see if it helps accuracy at all.

Frank