Quote Originally Posted by 00tec View Post
Source? I cannot find that terminology anywhere I look
The sporting goods items that may be subjet to oversized baggage fees list that they may be subject to over sized baggage fees right in the guidelines for those specific items. The fact that the possibilty that a firearm may be subject to oversized baggage fees is not specified under the firearms section you can deduce that they are not subject to that fee. The verbiage in the firearms section only states that you may be charged for additional bag fees if you are over your free checked bag total that is allowed for your purchased ticket.

The specific over sized baggage rules list the total length formula that determines an over sized item.