Disclaimer i know nothing......

hukset402

Weld On!
Full Member
Minuteman
Jul 24, 2020
219
222
nebraska
Question: Can you run "uncrimped" rounds through a crimping die to use them in an AR?

Hopefully this question has a some what simple answer. As stated I know almost nothing about reloading other than they very basics of how it works.

I have a pile of .223 that was handloaded years ago by my best freind. He reloads a lot and I'm jot worried about them. He said that they were loaded for a bolt gun and were not "crimped" so they shouldn't be used in am AR.

I'm going to ask him the same question next time I talk to him.

Thanks in advance.
 

High Desert duck

Private
Full Member
Minuteman
Sep 1, 2014
266
348
Nuevo Mèxico
First of all, are they loaded to saami length? Or were they loaded long for the bolt gun. That may cause problems if it was. Also make sure none of the primers are “proud” exposed above the casehead. (Slam fire potential)

I would load go to the range and check. Bring some calipers. Measure 1, Load it in your magazine, and chamber it don’t fire it. Extract and measure.
If no movement, measure three, Load them, in the magazine, chamber and shoot one, extract the one out of the chamber and measure, remove the one from the magazine and measure.
If all is good try it with 5, then 10 in the mag. Always checking the measurement of the last one in the mag. Sometimes the recoil and movement in the magazine will set the bullets back.

Ymmv, imho, be safe out there. I don’t crimp my semi auto stuff but I run .003-.004 neck tension.
 

GoForBroke

Private
Full Member
Minuteman
Oct 25, 2006
324
137
Eastern Oregon
Question: Can you run "uncrimped" rounds through a crimping die to use them in an AR?

Hopefully this question has a some what simple answer. As stated I know almost nothing about reloading other than they very basics of how it works.

I have a pile of .223 that was handloaded years ago by my best freind. He reloads a lot and I'm jot worried about them. He said that they were loaded for a bolt gun and were not "crimped" so they shouldn't be used in am AR.

I'm going to ask him the same question next time I talk to him.

Thanks in advance.
I run uncrimped loads in my AR15 5.56 chamber. I test the loads for bullet movement prior to running them. But another thing to consider is are they safe in your AR? Since your buddy said don't run them in your AR I'd just not run them.
 

b6graham

MMPRL
Full Member
Minuteman
Supporter+
  • Jul 29, 2014
    7,040
    6,070
    Colorado
    id be more worried about the fact they were loaded for a bolt gun (bullet, powder, length) than a crimp

    sounds like a good excuse to build a 223 bolt gun to me
     

    hukset402

    Weld On!
    Full Member
    Minuteman
    Jul 24, 2020
    219
    222
    nebraska
    Funny story.... I sold a .223 bolt gun to get into a 6.5cm. Then I moved and found about 1000 of the rounds in question in the back of my locker. Along with another 1k factory varmagedon rounds.

    Guess I'll start kitting up the gun counter around the new house (moved 80 miles) and see what I can find.

    Thanks gents.
     

    txtaxman

    Private
    Minuteman
    Nov 24, 2019
    15
    15
    Question: Can you run "uncrimped" rounds through a crimping die to use them in an AR?
    I have a pile of .223 that was handloaded years ago by my best friend. He reloads a lot and I'm jot worried about them. He said that they were loaded for a bolt gun and were not "crimped" so they shouldn't be used in am AR.
    Yes, you can run "uncrimped" rounds through a crimping die to use them in an AR. If you crimp, it is considered best to crimp as a separate step after seating the bullet. Many people say that with adequate neck tension, a crimp is not necessary for use in a semi-automatic.

    Do you have the data, i.e. Bullet, Powder Charge, and Primer used? Are the loads moderate, or are they near max?

    In your case, the one who loaded them says not to use in a semi-automatic.
     
    • Like
    Reactions: 338dude