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1/22/2020 12:12:56 PM
Posted: 9/17/2009 7:03:55 PM EST
I'm starting to reload .223 and I loaded up my first test loads with AA2230 tonight. The relevant specs are Hornady 55gr FMJBT w/ cannelure in RP cases trimmed to 1.753 (well, since I bought a Lyman Accutrimmer by mistake, it ranged from 1.750 to 1.755). I seated to mid cannelure and the COAL is about 2.220. Checked everything along the way with a Dillon gauge and it all looked good. I'll be shooting these in my AR so I loaded a few in a Pmag and cycled them through to test. They ended up looking like this:

http://img36.imageshack.us/img36/9256/dsc00073dm.jpg

Note the scratches. My apologies for the crappy picture, but I hope you get in the idea. If not, there are scratches in a semi circular shape in several places around the bullet. The middle round shows twin scratches because I chambered that one twice. I tried some Brown Bear for comparison and it came out with the same scratches. My first thought was rifling, but these are seated rather short and the bullet didn't appear to be set back any in the process. I'm puzzled. Is it actually going into the rifling? Is this normal for an AR. I vaguely remember seeing this before, but once I chamber a round I tend to fire it, not unload it and look at it.
Link Posted: 9/17/2009 7:30:59 PM EST
normal, from the chamber lugs
Link Posted: 9/17/2009 8:13:19 PM EST
I doubt the round leaves the magazine and enters the chamber without touching a thing.
Link Posted: 9/17/2009 8:20:54 PM EST
I tried feeding one at a time and still got the marks, but they were less noticeable. I guess the marks are still created on extraction.

Great, thanks to both of you.

Reloading is good for driving home exactly what is happening with a firearm.
Link Posted: 9/18/2009 3:01:18 AM EST
I chambered one the other day at the Range, just to see if I was getting Bullet Setback.
Ejected it out, and the bullet was scratched the same way. No Bullet Setback.

Still shot a good group.

Good luck with your reloading hobby.

See yeaw
Link Posted: 9/18/2009 4:49:43 AM EST
Link Posted: 9/18/2009 4:58:30 AM EST
Use a .223 guage to check ammo, not a rifle.

Manually cycling live ammo through a weapon doesn't tell you shit because it doesn't replicate a realtime cycle, and only sets you up for an AD/ND.

For pistol ammo, I don't have a guage so I take a barrel OUT OF THE WEAPON to check chamberability.


Link Posted: 9/18/2009 6:17:20 PM EST
Shoot them, they are fine.
Link Posted: 9/18/2009 6:35:47 PM EST
Bullets are no good, pull them all and send them to me for disposal

It's normal to get some marks.
Link Posted: 9/19/2009 4:47:59 AM EST
The lugs on the chamber are scratching them on extraction.
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