Is there an advantage to either way ? I never crimped until today I dug the die set out and full length resized some PMC brass, threw 3 loads together and crimped the bullet. That it was the first time I full length resized the brass, normally I only neck size and run them as is , trimming the brass as needed. They shot fine but that load does without the crimp. There is so much stuff that I should know but don't. Thanks in advance.