one thing that has not been mentioned in this exchange is that, in addition to physical strength, the size of one's hands plays a significant role in the process. if you're 6' 4", and wear size 13 boots, there is much likelier chance that you can sweep both hammers in a single motion. i'm 5' 7", and wear size 9 boots, and the only gun that i could single motion cock was a sauer modell 4 in 16 gauge - and it was dependent upon technique.

of course it doesn't help that in 1975, i trimmed about 1/2" off my right thumb in a power jointer - but even if there were not the case, it would still be a tall order for me to single motion cock any typical double.

best regards,

tom

"it's a poor sort of memory that only works backwards."
lewis carroll, Alice in Wonderland