I've searched the forum for a direct comparison between the Pro Hunter/Pro Hunter THB and the SSG 04, and can't seem to find what I'm looking for. When I go to the Steyr Arms website, I'm able to select and view the "Tech Specs" for the SSG series and the Scout series, but they don't post any specs for the Pro Hunter or THB models. This leaves me wondering what the differences are between the Pro Hunter series and the SSG-04 (not the A1). There are plenty of obvious external differences such as the barrel length, the features of the stock, the barrel contour, the bolt handle shape, and accessories like muzzle brakes. But aside from these easy to see features, does anyone know if there are any differences in the actual action and barrel? Things like the type of rifling, twist rate, type of steel, bedding, trigger etc? Essentially, why is there a $1k price difference between a 20" Pro Hunter THB and a 20" SSG-04 (not A1)? Are there any differences besides the muzzle break, adjustable cheek riser/buttstock, bipod, and magazine extension? Thanks for your time!