My favourite scopes, for airguns, are:
Falcon 4-14x44 First Focal Plane, Mil turrets and Mil B20 Reticle, for longer distances. Great specification for the money. I now own five Falcon scopes, though had to return one that I bought cheap second hand, but have experienced no actual problems with those bought new; and neither have the others I know who also use them for centrefire. Turret tracking works. Sold all the Hawke Sidewinders after I started using a Falcon scope.
For short distance airgun shooting to max 50 yards, on a light rifle, I use a simple Hawke 4x32 with simple cross hairs….which although has inaccurate turret movements as is invariably the case with that make…this one has never lost a stabilised zero. Such small, light, good exit pupil size, low magnification scopes are often overlooked by airgun shooters. Tracking squirrels etc at short range is far easier with a low mag scope.
I could rant for ever and a day about scopes, or more specifically the “BRAND names/manufacturers”.
Missing from the above posts is a fundamental factor about scopes, which is whether they are Second Focal Plane (SFP) or First Focal Plane (FFP).In brief practical terms, if the reticle is to the rear of the scope then it is a SFP scope and if the reticle is to the front then it is FFP. The significant difference between the two positions for shooters is that a reticle on a SFP scope will stay the same size regardless of the magnification setting, and with a FFP scope the reticle will change size according to the magnification setting. Most people, used to SFP scopes, will think why on earth would I want the reticle to change size…which can be harder to see? If shooting at short distances, quick squirrels etc, or at night then I would agree. I want an easily seen bold crosshair. However, one feature of a FFP scope’s reticle is that it changes size according to the magnification setting and therefore allows the shooter to quickly range targets and shots; because the target remains proportional to the reticle…..regardless of magnification.On a SFP scope, using the Mil reticle system invariably included in them, to range you have to set/calibrate the magnification to your chosen setting which, unless you like to make life complicated, means setting magnification at either 10x or 20x (or another mag setting, depending upon the range you want to calibrate the mildots to).
In Ted’s ranging video (SFP scope, mixed turret/reticle) he had to first calibrate/fix his magnification setting. If the magnification changes, his ranging ability is off/gone.
https://www.youtube.com/watch?v=9X3SLslalJE In this video, Ted ranges easily with a FFP scope (MOA Turrets and MOA dot reticle; not the MILDOT/MRAD system)
A fixed 45 magnification, in fact as high as you can get away with in regard to control of focus, for target shooting/precise ranging sounds good to me. For fixed targets, such as benchrest, so many advantages, including value for money, than using a SFP high variable mag scope.
For the sake of simplicity and timeliness I use centimetres and metres with MRAD, inches with MOA.
I am somewhat puzzled by the idea of having a mildot (say…base 10) scope with fixed magnification of 12 (base …12), as such would make life unnecessarily complicated in terms of always introducing an extra step of maths for ranging. Magnification multiples of 10 I understand with MRAD.
I remember Bullet Drop Compensators and mildot reticles on airgun scopes coming to the fore in the early 1990’s, as a cheap marketing gimmick. In my opinion, any company that produces scopes in mixed MIL/MOA systems should be shot into outer space…..having no credibility…..especially when it comes to use on centre-fire rifles and even longer distances. Would they buy a car that gave speed in MPH and fuel economy figures in gallons per kilometre? Would they set their speedometer etc to Km when the signs along the road were in miles? Software can patch up the gap in manufacturers scope “system”, but surely it is better to be honest and design decent products from the start.
Turret design is another problem. More than one “leading” airgun scope manufacturer have terrible target turrets, in which you don’t know which revolution you’re on, though that often doesn’t actually matter with them because the tracking doesn’t work….as is the case with most airgun scopes.
There is no perfect scope, not even a S&B PMII, so the reality is that …. The decision to buy any scope must be a balance between cost and benefits. A $500 scope may have above average lenses, and may be fully coated (fully coated with what?!), but unless the complete package works properly and balanced then what is the point in it? Each high magnification scope is, in my experience, slightly different so you have to practise and learn the focussing/parallax distances/light issues with it. I’ve had different issues with a S&B PMII than with a Falcon or Hawke. I can't agree that certain scopes must be good because companies supposedly have few scope returns. A few of the common brands of airgun scopes produce a lot of junk at the lower end; with some exceptions. Many problems are to do with their manufacturer, the standard/quality of parts/manufacture of what is often a complex item for comparatively little money, many problems are with the users….though would the users have so many problems if the manufacturers had decent manuals!?
I suggest the following videos as a BASIS for learning about scopes.
https://www.youtube.com/watch?v=ytOLj8hYqAg https://www.youtube.com/watch?v=V5to0loGVzU https://www.youtube.com/watch?v=xgB22aXbbeI https://www.youtube.com/watch?v=53LTp4prwkY https://www.youtube.com/watch?v=-wBr_brpSYk https://www.youtube.com/watch?v=CX3hLSI59ko