I now have the basis for starting to estimate Dutch guns. This is a quick attempt, based on what I learned from Nico Brinck and from G.C. Dik's book:
Regular:
- 2pdr 500 lbs
- 3pdr 800 lbs
- 4pdr 1100 lbs
- 5pdr 1400 lbs
- 6pdr 1750 lbs
- 8pdr 2300 lbs
- 9pdr 2500 lbs
- 10pdr 2750 lbs
- 12pdr 3160 lbs
- 14pdr 3500 lbs
- 15pdr 3650 lbs
- 16pdr 3780 lbs
- 18pdr 3950 lbs
- 24pdr 4850 lbs
- 36pdr 6200 lbs
Brass Drakes and Chambered pieces:
- 4pdr 520 lbs
- 5pdr 700 lbs
- 6pdr 850 lbs
- 8pdr 1100 lbs
- 10pdr 1360 lbs
- 12pdr 1540 lbs
- 15pdr 1850 lbs
- 18pdr 2150 lbs
- 24pdr 2800 lbs
- 36pdr 3650 lbs
I'm hoping that better information might eventually become available, but this is a start.