little help with 300 blackout load

[mo1911]

I got a stuck case and and had to disassemble my decapping die. Once I got everything back together I I finished my first round and noticed the shoulder was tapered a little more than a new remington round. Will this be an issue? The new round is on the left. My round is on the right.

[ducky_0811]

i dont know if case guages are out for this caliber yet, but if so I would pick one up, or, go to the range, point the rifle down range and chamber it. I dont load 300 blackout but if i have a round that looks odd or gives my reason to raise an eyebrow, i just mark it with a sharpie and test chamber it before I just load it and hope for the best

[mo1911]

i dont know if case guages are out for this caliber yet, but if so I would pick one up, or, go to the range, point the rifle down range and chamber it. I dont load 300 blackout but if i have a round that looks odd or gives my reason to raise an eyebrow, i just mark it with a sharpie and test chamber it before I just load it and hope for the best

Will do! Just marked it.

[G38xOC]

from that picture , it doesnt appear to have heavy crimp . looks good to me

[mo1911]

from that picture , it doesnt appear to have heavy crimp . looks good to me

Sorry the shoulder was tapered not the neck.

[3006mv]

You should be gtg
What dies do you have?

[mo1911]

You should be gtg
What dies do you have?

Rcbs AR series

[FFShooter23]

When i form brass, I run it twice on my die. First pass looks like the factory, second pass looks like yours. The shoulder after the second pass is more pronounced.