Disclaimer: this scope is not rated for piston (spring or gas ram) airguns! Using this scope on a piston airgun can potentially damage the scope.The Styrka S7 1-6x24 is an interesting scope. Most 1-4, 1-6 and 1-8 scopes do not have adjustable objective (AO), even the expensive ones (until you get to the *very* expensive ones). The Styrka has an AO from 10 yards, and that is the shortest distance in a field target match. AO is not very helpful at 1x, but it eliminates parallax at 6x, especially on closer targets.At 1x, the Styrka S7 1-6x24 can replace a red dot sight with some caveats. First, the Styrka S7 1-6x24 is heavy compared to red dot sights, and most of the weight is close to the ocular (eye) lens. This can potentially throw the balance off of a very light rifle. Second, the eye relief distance is fixed with any scope, unlike the "unlimited" eye relief of a red dot. On a rifle, having a fixed eye relief is not much of a problem.If one can get past the weight of the Styrka S7 1-6x24, one can literally see the superiority of the Styrka S7 1-6x24 over a red dot sight at 1x magnification. At the advertised eye relief, the sight picture of the Styrka S7 1-6x24 fills the entire ocular lens (which is huge). This makes shooting with both eyes open comfortable and natural. The image from the scope has some distortion compared to the actual image, but no more than even better red dot sights.In case one is shooting in a dark environment and the reticle does not stand out, the illumination feature comes in handy. This is also where Styrka engineers the product right. Instead of the usual off-1-2-3-4-5 wheel, Styrka has the off-1-off-2-off-3-off-4-off-5 wheel. This makes perfect sense because it is a mechanical way to remember the illumination setting. Just one click, and the illumination turns on and back to the previous setting. I also find the plex cross hair a whole lot easier to aim with compared to a single 2 MOA dot.And all this just to say about the scope at 1x!At 6x, this scope can take on medium range (air rifle standard) targets comfortably out to 30 yards, or even 50 yards for more powerful air rifles and/or larger targets. I find the image at 6x is just as clear as a Leupold 6.5-20 at 6.5x, that is saying something about the optics of the Styrka S7 1-6x24 because most scopes lose apparent image quality on the far-end of the magnification.For most airguns shooting pellets, pellet drop are important factors for close range (<10 yards to 20 yards) and long range (>30 yards) shooting. This is regardless of the energy rating of an airgun because pellets are stable at about 950 feet per second and below. The Styrka S7 1-6x24 has the low-profile elevation knob protected in a cap, unlike "tactical" scopes which have exposed elevation turrets.That being said, the elevation knob is marked by 1/4 MOA increments, and it can be zeroed. One revolution is 20 MOA (80 clicks). On most airguns, this translates to a range of 5 yards out to 70+ yards. In other words, once zeroed, the Styrka S7 1-6x24 can adjust for pellet drop for the entire effective range. This claim applies to most airgun shooting .177 .20 and .22 pellets.Since we are on the topic of elevation adjustment, both elevation and windage track well on the Styrka S7 1-6x24. You can draw a box on a sheet of paper with incremental adjustments of elevation, then windage, then elevation, and then back to windage. Furthermore, both adjustments are "square" with the lines of the reticle.This means adjusting elevation moves the point of impact strictly vertically (having a bubble level helps to know when the gun itself is leveled). On some other scopes that I have owned, the actual adjustments are "slanted".All things considered, this is a 5-star scope in my books.