I am reloading the 357 rem max in a nef single shot rifle for my uncle. I am using new Remington brass, hornady 357 diameter 140 gr flex tips. 22.4 gr of w296 powder. rcbs dies and grouping very well at 50 and 100yds however I am getting a split case about every 10-15 shots. just curious if I am doing something wrong, bad brass or what. in load development I had cases split at grain increments of 20.5, 21.5, 22.4, 22.9. If the split cases were on the hotter end of the spectrum I would understand but my third shot with the 20.5 split and the splits are occurring mid case and only split to where the bullet is seated to. this is my first go around with pistol caliber reloading so any help is appreciated. thanks
