I'm actually a bit skeptical about the 40% number, although I'm sure there is some increase - and as mentioned by Cik, too, typically launches at the extremes of a missile's range are made at dash speeds anyway, where the F-22 isn't actually faster than most fighters.
Looking at the DB, the F-22's supercruise is modeled in a rather funky (but I suppose fair) way in CMANO - the cruise speed setting is the same 480kt as most aircraft, but the top speed of 1000kt is reached at Mil setting rather than AB. As with most "exotic" aircraft, it's basically got its own tweaked fuel consumption model, so it is still in "virtual afterburner" when it's at 1000kt - but will consume a lot less fuel at intermediate speeds between Cruise and Mil, in certain altitude bands, compared to the average fighter. By comparison, the F-16 has the same 480kt cruise setting, and tops out at 925k in afterburner. So, that's a pretty small 75kt difference.
The bigger factor is launch altitude, which as far as I can tell CMANO does account for. I don't think this is represented in the range circles - but with fast-moving air targets, the range circle is merely a "suggestion", and the AI evaluates launch parameters relative to a target and its closing rate etc. This is also influenced by things like Doctrine/WRA settings and OODA loops - pilots are generally reluctant to launch out to maximum dynamic range, and unless you specifically set them to do that, they'll usually hold until well inside the max range circles. Wisely, too - if my recent experiences with are anything to go by, even then the shots the AI take by default are pretty optimistic, leaving a careful enemy with plenty of energy to turn tail and pull an AIM-120 to a point where it starts losing speed and can be dodged more easily. Not a bad thing to force an enemy to turn back if you're facing a swarm of modern fighters, but against a lone MiG-21, it can really be a waste!
My experience with launching AMRAAMs is limited mostly to latter-day versions of Falcon 4.0 (hey, at least I admit that ). There, my method for making the most of the missile's range against targets at medium altitude was to climb at max rate while the contact was still some distance away, then just as the contact was getting near the dynamic range limit, I'd hit full afterburner, reduce my climb to about 10 degrees nose up to pick up a burst of speed, and then nose up to 20 degrees or so just before launch. By then the target would be pretty close to the no-escape zone (and, assuming it wasn't doing the same thing as me, would be at an energy disadvantage, meaning I probably wouldn't be launched at first). Seemed to work pretty well!
< Message edited by CCIPsubsim -- 5/5/2017 6:23:41 PM >