No. A scientific test would be to do the same with an expanded case fired in that chamber and the primer pocket open, as would be in a over pressure situation.
Your "test" isn't testing real conditions.
Do the same "test" on any bolt action and the results will be similar.
And, a ruptured case will vent down the bore if the bore is not blocked.
Last edited by David_Walter; 04/07/15.
