L2J Server

Hi there .. i got small problem with drop rate items

I have farm mob that drops some special items .. i set drop rate of that item to 30 % ( 30,000) and min dropped items 1 and max 5...

But when players kill that monster they drop that item with a 30 % chance but sometimes more than 5 items from one kill ... a also have RateDropItems = 1 ... what is wrong ?

Also small question about chance ... 100 000 = 100 % ?

1 000 000 = 100% i thought. dont know bout ur other qeustions u should take in consider when applying the rates and the dropchance that they multiply.