Loaded for travel, my tongue weight
was 305 pounds
last time I checked with bathroom scale, but of course it varies with loading. I need to keep it to 350 lb or less for my tow vehicle and hitch configuration.
The empty tongue weight
of mine is about 200 lb as listed on page 8 of the 1979 Boler Manual
found on the Boler
page in the Trailer Brand Manufacturer
section of the FiberglassRV Document Center
(link on left edge of page under Resources).
Mine is a 1979 B1700RGH built by Vanguard Trailers; the manual I linked is the actual one from my trailer. The "RG" means Rear Gaucho ("SG" is Side Gaucho), and the "H" models have the water heater and shower.