'03 Springfield w/prewar C Stock?

[John Beard]

Just acquired a nice '03 Springfield, 944897 with 8/44 SA barrel in a nice
C Stock. It has a naked P and a B struck in front of the floorplate and nothing in the cutout area. It also has a boxed AAHO rebuild stamp and a smooth buttplate. My guess is that the stock was added prewar and then rebarreled during the war.
Three questions. Is the stock prewar? What is the B marking in front of the floorplate? Last, I know that squeezing the barrel against the stock will show some movement, but my barrel seems to move more than any other of my
'03s. Will this affect accuracy?
Thanks

(1) Not likely.

(2) Don't Know.

(3) Yes!

Hope this helps.

J.B.