"There is no way on earth that a Jaguar could carry 22,000 lbs of bombs to Berlin from the UK, or indeed from anywhere to anywhere."
A Lancaster couldn't carry a Grand Slam all the way from the UK to Berlin either - they had to take fuel tanks out of the Specials they built to carry it. Normal max was 12,000- 14,000 lb of bombs
I suspect Bill G was stretching the payload/range of the Jaguar but generally he was making a valid point