An extraordinarily talented shooter with a very fine airgun of the highest quality would need to be even more extraordinarily lucky to get these two in two quick shots at any real distance, even on a day with ideal conditions.
Of course, even taking ONE of these at long range with a single shot is impressive, and something we should ALL strive to be able to do, if we're able to afford the equipment and have the opportunity to learn to do so - though, as pointed out above, this is going to be a LOT of money, like, many thousands on the gun, high quality range finder, weather station, and other associated equipment - plus TONS of time spent learning your gun and getting your dope down to the finest details.
However, a lunatic with a mid-cost accurate low-recoil full auto like the Blitz with an over-sized clip, or the SK-19? LOL, even if there's a half dozen of 'em downrange, them critters gonna have a BAD day. ;-) Volume and rate of fire IS, after all, a proven aid to accuracy assuming some reasonable level of skill in controlling the weapon. ;-)