These were purchased specifically for the Privateer Rounds and fit perfectly. Also suit the Egyptian Gods series. I don't have my calipers with me so I can't tell if they'll suit the 2oz QB. Because of their girth, they wont fit as a large letter so postage on one or all will be $10 flat and includes hectic postal protection! prices below; 1 x cap - $5.00 each 2-5 cap - $4.50 each 6-9 cap - $4.25 each Grab all 10 in one go for a unit cost of $4 and a total cost including shipping of $50 Buzz or PM and as always, thanks for your time