Have no idea how much my friend was carrying in terms of weight, didn't have a scale with me. Also, it would have probably been in grams not in whatever weird u

Have no idea how much my friend was carrying in terms of weight, didn't have a scale with me. Also, it would have probably been in grams not in whatever weird units you guys use in the US. Jokes aside, it's confusing the way you used the expression "an ounce", given that "an ounce of" something is usually used to express just "a bit of" something.