ok so i just loaded my first 50 10mm rds. using lee 10mm carbide dies, lee brech lock challenger press. when i started seating bullets i had 1 round totaly smash due to trying to use built in crimp. i reset the die to not use the built in crimp just seat the bullet and 4 or 5 of 50 rounds hve weird bulges down the sides. my only guess is that its because i didnt use the camfer/deburring tool like used with rifle cases but the instructions with the dies included step by step loading directions that made no mention of chamfering/debrrring and since this was my first time loading for a pistol i folowed the directions and didnt chamfer or deburr the case mouths like i would a rifle. should i have?

heres some pics.