Many reloaders seem to be opting for the TSX these days so I thought I'd give some a try. Went to Sportsman's Warehouse and they wanted $30 for 50 120g in 7mm (for my 7mm-08). That compared to roughly $10/50 for most cup & core Sierras, Hornady's etc. So why are they so darned expensive and would I see any practical difference using them for whitetails?