Huffington Post writes, * Sturm Ruger, Smith & Wesson to report quarterly results * Gun sales strong as buyers rush to beat gun-control proposals * Some investors cool after Newtown shootings By Arpita Mukherjee and Siddharth Cavale Feb 25 (Reuters) - U.S. gun makers are aiming for record quarterly sales as first-time buyers, including a growing number of women and pensioners, rush to buy weapons before anticipated gun-control laws come into force. President Barack Obama's proposals to curb gun violence in the United States, including enhanced background checks and a ban on military-style assault weapons, have…