I'm not good at keeping track of brass reloads. Some have been reloaded 6 times, some 2 times. They all get thown in the same bucket. I worked up a load of 50g. IMR 4831 with 115 BT. last year. I noticed the last 25 rounds I shot 6 show the case cracked about half way around 3/8 up from the rim. The primers don't show any problems and the bolt does't lift up hard. Should I start with some new brass and see how they look or is this load to high of pressure? Thanks for the help.