daggrant99
NES Member
- Joined
- May 23, 2014
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Great info, thanks.The .223 Remington die that I use to size the .380 Auto brass sizes to about .371" mid length. With a .355" bullet seated the mouth mic's at .372". You do see a slight ring where the base of the bullet is, but it in no way adversely affects the functioning of the round.
I don't have a complete .380 Auto die set and no other sizer die that I possess allows for proper grip of the bullet.
To be honest, I'd rather have the .001" diameter variation instead of risking movement of the bullet seating deeper during chambering due to light case grip.
Speaking of which (and I'll throw this in for free), if you ever have any sized .45 Auto cases that allow the bullet to slip right into the case (I've found many R-P nickel-plated cases with this issue), run them into your .308 Winchester sizing die as appropriate, to get them to grip the bullet properly. They will still head space properly when finished. Many will just cull them from the mix, but they can be salvaged, if you want to bother.