Help identifying ammunition.

[tomusaf]

Going through bulk ammo cans and found quite a few of these. Could be 300 blckout but not sure. Took photograph of one on my 300 blackout rounds beside the mystery round. Headstamp is lc 16 with nato circle with cross. By looking at primer looks like factory load

 

[tomusaf]

Photos

 

[Psilloh1]

palmettomoon if he doesn’t know no one will…

 

[Please Delete]

Going through bulk ammo cans and found quite a few of these. Could be 300 blckout but not sure. Took photograph of one on my 300 blackout rounds beside the mystery round. Headstamp is lc 16 with nato circle with cross. By looking at primer looks like factory load

300 BO...or 300aac whisper...OR 30-.221.

 

[BHPSteel]

Pull your 300BLK barrel and plunk it in the chamber.

If you're really concerned, hit me up via a DM and I'll swing by with a Sheridan ammo gauge. You can't be more than 5 mins from me.

 

[EMC45]

I’m thinking 300 blkt loaded with trimmed resized 5.56 brass

 

[palmettomoon]

I’m thinking 300 blkt loaded with trimmed resized 5.56 brass

This. 300 AAC in a converted 5.56mm NATO case. Staked crimp could be swaged out.

The other appears to be Remington factory ammo.

 

[mfoster]

We necked up 221 fireball to 300 whisper back in 90’s

 

[EMC45]

This. 300 AAC in a converted 5.56mm NATO case. Staked crimp could be swaged out.

The other appears to be Remington factory ammo.

Lake City 2016 at that

 

[tomusaf]

Has brass factory primer. Seems to be way it came. Not a reload