Profits on guns are made on the buy, not on the sale. The sale, to maximize return, should be on the day after the buy, so the money can be recycled on another buy. This is not fun, or a retirement strategy, it is business, a way to make a living. Some people in the business have outrageous collections, but they are sucked out of the business, very little at a time. And the 28%? Fill out the forms and send in the check.