The hasmat fee is a government TAX, which is passed on to the consumer by the shipper who or dealer who has to pay it to Uncle Sam. It is a scam, as are most taxes, because they are crafted to impose a cost on a special group, which is generally not organized to oppose such legislation. Considering how many members here are not members of the NMLRA, it is small wonder that Congress targeted us for a new " Tax ". And, someone was right. When was the last time you heard of any explosion involveding percussion caps, or even Black Powder for that matter? Just wnat is all this money doing for our country? Paying those airport security guards who are asleep, or searching little old ladies in wheel chairs for guns and knives? There is no special storage requirement for percussion caps, and there should be no special shipping requirements for them either. I don't know why anyone would be charged a hasmat fee for them. They are not " explosive " as defined by the regs. In fact, they use modern chemicals not dissimilar from those used in modern primers. Now, some of the caps coming from Europe may be a problem, as I have no way of knowing what they are using in their caps, but the CCI caps I use are thoroughly modern.