Warning @ Remington ammo

[MarkG]

http://www.combatshootingandtactics.com/news.htm

Bullet setback

I doubt it. My money is on case failure.

In any event, what in the hell were they doing shooting bolt gun ammunition in an auto-loading rifle?

[GunnutAF]

I think this more on the line of bad brass/ insufficient crimp! I had this problem with Rem brass reloading it where it will not have sufficient tension to stop bullet from set back ! I found I had to anneal the brass and resize to get it to function as it should! A properly sized/tensioned case neck will not allow bullet set back! With a good crimp is added protection from such! I've never had bullet set back in any of my semi's that -cause my reloads are properly neck tensioned an crimped!

[chadbag]

I doubt it. My money is on case failure.

Yeah, due to excessive pressure due to setback. Did you see the picture of another round (presumably from the gun?) Bullet is set way back.

In any event, what in the hell were they doing shooting bolt gun ammunition in an auto-loading rifle?

[Oscar 319]

I believe this is the same ammo from Remington's recall notice from March 14th.

https://www.m4carbine.net/showthread.php?t=76635

[ScottFarkus]

I believe this is the same ammo from Remington's recall notice from March 14th.

https://www.m4carbine.net/showthread.php?t=76635

Thanks Oscar, I did not find that thread.(I blame the pain killers!)
Mods, thanks for moving, I didn't think about ammo thread.

[Oscar 319]

Thanks Oscar, I did not find that thread.

Niether did the operator of that RRA carbine.

[kest_01]

I've seen the upper blow out like that once, and it was with an army colt m4, but never seen the carrier blow out like that. Crazy, luckily that guy wasnt hurt.

[MistWolf]

Pushing the bullet back might cause an increase in pressure, but that's mitigated by the fact it creates more freebore- that is, the distance the bullet must jump before it engages the rifling. This reduces pressures. It's been found that compressing loads by seating the bullets a bit deeper doesn't have that much effect on pressures.

While it's certainly possible the bullet was seated deeper when loaded into the chamber, it's doubtful (although not impossible) that it would result in catastrophic pressures. The cartridge shown in the picture shows signs of having been in the magazine when the rifle came apart. The tip is flattened from being slammed against something and there is a dent in the shoulder. It's also looks to be crimped. It took some force to push that bullet deeper into the case. If that came from simply chambering the round, the rifle has serious feed problems.

It does not matter this was "bolt action" ammo. For one, it isn't. It's 223 Remington, loaded to fit 223 spec barrels with the shorter leade and safe to fire in 223s and 5.56 rifles of any modern action type.

The excessive pressure could be the result of a tight throat, bullet seated too far out for the leade, too much powder, obstruction in the barrel, too hot a primer or a combination thereof. It's possible it's from the bullet being seated too deeply, but very doubtful

[MarkG]

It does not matter this was "bolt action" ammo. For one, it isn't. It's 223 Remington, loaded to fit 223 spec barrels with the shorter leade and safe to fire in 223s and 5.56 rifles of any modern action type.

My intent was not to debate the 223 vs. 5.56 chamber or the interchangeability of the ammunition between the two.

Match ammunition is for bolt action rifles and race guns. The use of ammunition without cannelured bullets and roll crimps in an auto-loading fighting rifle poignantly illustrates bad judgement.

I've got my serving of crow ready IF that ammunition is cannelured/crimped, but I doubt it.

[Iraqgunz]

I agree with your second point. I have to wonder if that ammo was loaded with the wrong type of powder (is that possible?) or was it overloaded?

I wonder if Remington is going to replace that weapon?

My intent was not to debate the 223 vs. 5.56 chamber or the interchangeability of the ammunition between the two.

Match ammunition is for bolt action rifles and race guns. The use of ammunition without cannelured bullets and roll crimps in an auto-loading fighting rifle poignantly illustrates bad judgement.

I've got my serving of crow ready IF that ammunition is cannelured/crimped, but I doubt it.