df - note that there are a number of people on this board that do have the background and inclination to read Mr. Bell's work, word for word, and to review his data and conclusions. His articles have stood the test of time. They are several years old and have been the core of many discussions, both here and off this board. If there was a fundamental error, it would have most likely been pointed out by now. However, if you think you see a scientific error, please point it out.
Mr. Roster's statement may be true for limited cases, but I've seen way too much credible data to accept his statement as the general case.
The shell manufacturers are stating a liability limiting warning that has a foundation of erring on the side of safety. They are correct to do so. But, once again, this is not a general statement for all situations; it is a warning for the shells in that box.
