Jerico,
Hunting rifles, even the heavy barrel varmint variety, were around before the word "tactical" became vogue. Snipers during the Vietnam War were using rifles made with the "varmint profile" barrel. Before that, varmint hunters weren't using the "tactical" rifle to kill squirrels.
The Sendero came out before Remington, or any other mfg., made allowances for the Law Enforcement community. The 700 VS (short action Varmint Synthetic) came out before the Sendero (long action). Hunters, and other folks, were buying this rifle (VS) because it came in .308Win. and of the chamberings first offered in this rifle, it was the best for LR big game hunting. Remington put the pieces together and came up with the Sendero. First described as: a long action rifle, capable of handling the .25-06/.270/7mmRM and .300WM, with a heavy varmint profile barrel for LR accuracy. The LE community and military saw the benefits (stability, accuracy, consistency) of the heavy barrel rifle and gravitated toward them. Rifle mfg.'s saw, heard and felt the needs of these communities, and produced the "tactical" rifle and cashed in on it.
Now, everything with "tactical" stamped on or added to it is a few hundred to thousands of dollars more than it's "civilian" counter-part. JohnnyK.