What would happen if this 223 brass was used?

[kdsd731]

I just switched to a progressive press and since it is new to me, when I installed my 223 Full length die in the slot closest to me (because it was easiest access) and did the adjustment process I failed notice that I didn't bottom the die out to the shell holder, I bottomed out the decapping pin on the shell holder. I then moved the die to the #1 slot after my "adjustment" and sized 300 brass this way. Then after I noticed the neck of the case had a taper because I made a rookie mistake setting up the die not thinking that it mattered which slot I set it up in. What is the worst case scenario If I were to load these rounds with a crimp? Now, before I start the a big safety debate, I have already full length sized them again to spec. But for the heck of it, what would most likely happen if I had used those cases? They did chamber fine BTW.

[DougJ]

After you "partially" sized them you saw your mistake and went back and full resized again?

If that's what I'm reading you should be fine, sounds like you probably just bumped the mouth with the resizing die. I guess you might stand a slightly greater chance of a crack in the case mouth area, but I highly doubt it. I have some .223 brass that has been fired and resized at least ten times.

[kdsd731]

Yeah. I know I'm fine now having full length sized them correctly. But I'm curious what would have happened if I hadn't noticed and I fired those partially sized cases?

[ireload]

Though it never happened to me, I would assume nothing since you stated "they did chamber fine btw".

[chknlyps2]

Well if they chambered then possibly bullet set back when it hit the feed ramp because not enough neck tension?

[russt]

i would think the only serious issue i could see would be not enough neck tension causing bullet setback upon feeding and then excessive pressure when fired. i think the most valuable lesson learned is case inspection. good catch.

[kdsd731]

Thanks for the input guys!

[Quinc]

"If I were to load these rounds with a crimp" I believe 5.56 rounds are crimped so they would have been fine. Maybe a loss in accuracy.