In my Square Deal, the Remington primers are fine, not much of a problem with stuck primers. However, when using CCI's I get stuck primers in the tubes from time to time. Just got a new 9 mm press the other day and used the CCI's I had bought some time ago (no problem with them in the Lee system), and the first tube filled had one stuck which could not get out. Normally, it is sheer impossible to get them out, so the tube needs to be discarded. I had the same issues with CCi's in the .45 press.