How many units did you use? Show us your bill. 3.84 is very low.
His rate seems about right. My bill for June 22 worked out at B3.77 per unit. November's was the equivalent of B3.83 per unit.
It happens, usually in the USA, but they just confiscate them and let you go?
Would that happen in the US if the two magazines were discovered by US Immigration when a foreigner was trying to enter the country with them?
"If your Thai national you can drive around all day with a loaded gun...".
Of course they can if they're licenced, guns are not illegal in Thailand.
Smuggling ammunition into Thailand is illegal.