Short stroking? really? You have to be kidding....I have never "short stroked" a bolt action in my life.
I'm sure YOUR fix feeds just fine but it's pretty obvious that this is not the case for some owners.
as an FYI cause I am not sure if you read all the posts in this thread, Some people were having some issues with short stroking. to Some people there was a bit more space between the end of the mag well and back of the stroke as compared to other rifles...
if possible I would try to find a local user and try to isolate issues. switch bolts and see what happens, switch barrels if possible, etc.