Should i expect my brother to do a lot of time in prison?

My brother was arrested for Drug trafficking in a controlled substance and intent to distribute marjuana(he was caught with 1 pound of weed and a ahlf pound of pills in a acr with a gun)he is a convicted felon so he was charged with firearm posseion by a felon. My brother is on a 5 year felony probation which he violated by being arrested for this and was just released from prison 3months ago...he has a real bad criminal record he has been in and out of jail since he was 15 years old. He is 21 and we live in Georgia how much time will get.