Ammunition & Hand Loading > Cartridge and Shotshell reloading
First .223 reloads - Sucess and Major FAIL
M7025-06:
Sounds like you need to crimp to keep the bullets seated. I had the same thing happen with my first AR reloads, so I picked up a Lee Factory Crimp Die. That solved the problem.
I'm glad you lucked out today...that could've been very bad.
Dan W:
Crimping IS NOT a fix all for insufficient neck tension.
If bullets can be pushed back into the cartridge on feeding, there is an issue with the sizer ball on the full length resizer die.
Good neck tension requires an inside the neck dimension after resizing of .002-.003" under the diameter of the bullet (.221-.222") Bullet should be .224"
If you have a .003" interference fit you will not need any crimp (with the exception full auto use)
If you can insert a bullet into a resized case and then push the bullet into the neck with pressure against a wood block, your neck tension is too low to maintain COL on feeding
M7025-06:
--- Quote from: Dan W on February 24, 2013, 09:54:44 PM ---Crimping IS NOT a fix all for insufficient neck tension.
If bullets can be pushed back into the cartridge on feeding, there is an issue with the sizer ball on the full length resizer die.
Good neck tension requires an inside the neck dimension after resizing of .002-.003" under the diameter of the bullet (.221-.222") Bullet should be .224"
If you have a .003" interference fit you will not need any crimp (with the exception full auto use)
If you can insert a bullet into a resized case and then push the bullet into the neck with pressure against a wood block, your neck tension is too low to maintain COL on feeding
--- End quote ---
I understand that. I had 1 round where the bullet pushed back into the casing and decided a light crimp would give me a little piece of mind. The measured inside dimension of my cases runs anywhere from 0.220''-0.222'', so you're right in where I probably don't need to crimp...but like I said, it gives me a little piece of mind.
Dan W:
Just as long as we don't rely on a crimp to overcome a sizing error, I am fine with it. I use the Lee FCD too when I want to apply a crimp
Oleshome:
Can you clarify that Dan? I don't understand what you by "issue with the sizer ball." Remember i'm a newbie to reloading so I may be missing something totally obvious. I was really really careful to follow the instructions with the die, online videos from Hornady and numerous others on how to set up the sizing/decapping die. Even so, I've probably missed something and i'd like to recheck.
Ole
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