Quick question on 1903 v 1903a3 bolts

[Rumpelhardt]

Ok I read it a little closer and I think it is saying that certain parts within the bolts them selves do not interchange between the two different bolts not that the bolt's not swap between rifles. Guess that's what I get from reading some thing at midnight after getting home from work. My reading comprehension skills are not at their best at that time lol.