^manufacturer source
The “RB15F” is actually called the RBS15F and its missing 130kg of explosive filler. Now while the website on lists specs for the two newer RBS15’s. But it can be assumed that since they both have 200kg of explosive filler and are very similar in size and shape to the RBS15F the RBS15F is actually 200kg just like its younger siblings.
By the way, here’s these https://www.globalsecurity.org/wmd/library/report/1999/ecmt_vol_2.pdf
https://odin.t2com.army.mil/WEG/List?term=RBS
Not sure if you could use these two for a bug report