I'm also waiting for the 14th,but for now i have been playing with 3, 30 rd after market mags for my storm and have two more on order, here are my results.Only one mag will load 30 providing the bullet is no longer than 1.15 approx,which eliminates winchester they were a little longer.All 3 will load 30 when using Rem UMC 9mm which atleast the box i have are 1.13 approx,and or hollow points which mike about the same.In the feeding department with locked back action and 30 rds it would only chamber the first round with the shorter bullets.I would have to down load to 26 otherwise.Better results when chambering a round with bolt closed to start.The two 10 rd mags that came with the gun worked with anything,no surprise.I today mounted the rail for a dot sight to use for the two 3 gun matches a month we have here ,where we have to use pistol cals .If push comes to shove the beretta 20rd mags will have to do if the 30rd mags dont work out.Does anyone know about extended mag base pads for berettas?