i wanted an affordable, high magnification scope with short range parallax adjustment for my CZ 455. I bought an Argos BTR 6-24 on close out for $250. Scope wouldn’t track or return to zero or even hold zero. Impact was about 4” left so I dialed and dialed and dialed but no movement. I had waited past the 30 days to return to Eurooptic so I was stuck having to send it in to Athlon. It was a blessing in disguise because Athlon replaced the scope with a current Argos BTR Gen 2 with a better xmas tree reticle. The Gen 2 has solid zero stop, more tactile turret clicks and decent glass for around $400. I haven’t had a chance to shoot with the new scope to check tracking yet but at least I can trust Athlon to stand behind their products.