Gun sales have risen sharply this year, but will that continue? Smith & Wesson (SWHC) shares fell sharply early Friday morning, as did archrival Sturm Ruger (RGR), after Smith & Wesson reported late Thursday that fiscal second-quarter profit met but failed to top Wall Street's outlook, although sales beat views, but not by much. Archrival Sturm Ruger fell hard, too. Smith & Wesson reported earnings per share of 24 cents, in line with analyst