The single-shot bomb probability of success is 37.5%, which means it would require five bombs to achieve one successful explosion. The Syrian government over the last year has significantly increased it's barrel bomb sizes from hundreds of pounds of explosive to 2000 pounds (900 kg) of explosive.
ضاعفت الحكومة السورية على مدى العام الماضي من أحجام البراميل المتفجرة من مئات الأرطال من المتفجرات الي 2000 رطل مايعادل 900 كيلوغرام.