When someone states that gun manufacturers "skirted" the law or used a "loophole", you can point out that it just illustrates the foolish and arbitrary nature of the term "assault weapon". It's a perfect time to press them to the issue-- you must either support banning all semi-automatic rifles, or not banning any. If they have a problem with magazine capacity, that is a separate issue. It has literally nothing at all to do with "assault weapons".