Actual Hitch Weight vs Dry Hitch Weight

My real world numbers are shipping weight 7000 lbs, tongue weight (shipping) 715 lbs.
With batteries, LPG, loaded for travel 1050 lbs tongue weight. Not directly comparable to a lighter trailer, but my tongue weight increased by about 45%.
As another poster mentioned, there are plenty of light trailers on the market... just keep a very close eye on your payload.

Plan on adding 250-300lbs to the dry hitch weight on most trailers when they are loaded and ready to go camping in.

Take your trucks Gross Vehicle Weight Rating (GVWR) which is on the door sticker, and subtract the actual weight of your truck when you have a full load of gas, people, and anything else you might take in the truck when you go camping. Then subtract the weight of the WD hitch (probably around 100lbs). The resulting number will be very close (actual payload) to the maximum amount of hitch weight your truck can carry.

This will be a ball park figure but will give you an idea of what to look for in a camper - remembering the first sentence of this post.
The WD hitch will move some of that weight back to the trailer axles but I would not use that amount when figuring which trailer to get. If you find it necessary to use that figure on a trailer, that trailer is probably too large or heavy for you.
Barney

My payload is 1100lbs on the door sticker. This includes a 150lb driver.

For a real world case, my trailer in my signature had dry hitch weight of 806 lbs. With two full propane tanks, a power tongue jack, and a battery on the tongue, then all of our stuff in the trailer, its tongue weight was at 1,080 lbs. (weighed with Sherline scale).

If you're still in the shopping stage, try to stay with trailers below 6,000 lbs. GVW (gross vehicle weight). I know it's tough because it'll seem like everything you look at is too heavy, but there's a lot of lightweight trailers on the market now.

Look at ot this way, 13% of 10,500 pounds is way over your trucks cargo carrying capacity once you add hitch weight (100pounds), passangers and any gear you place in the truck. Not to mention the horrendous potiential issues trying to pull that much with so little.

A 500 lb dry hitch can easily end up at 650-750 lbs when you load your gear, LP, battery, and water. Especially if the fresh water tank and/or water heater are located up front. Then add your WD hitch weight to that.

I had a 23' TT a while back, with advertised 380 lb dry hitch. My TV had a 600 lb hitch weight rating. With the 30 gallon tank up front almost full and an Equal-i-zer hitch, I bent a rear spring on that truck.