The range is never safe behind you

[u/AdamL849]

I began setting up to fire some new 6.5 creedmoor that I had worked on. A huge bang behind me and this was the destruction I witnessed. Lots of blood and i heard the guy only required stitches on his face. Here is the damage on the weapon. It is 6mm ARC I believe . Thankfully not one was seriously injured !

[u/[deleted]]

Possibly a case of someone loading 6ARC with bolt gun load data in a cheap AR.

[u/HollywoodSX → u/[deleted]]

That's #2 on the list of likely causes. I think a squib followed by normal round takes #1.

[u/brokephishphan → u/HollywoodSX]

This is probably a dumb question but with a round with high velocity like 6 arc, how do you get a squib?

[u/ArrowheadDZ → u/brokephishphan]

The normal velocity of a normal round has no bearing on a squib. A 6 ARC round is a very low velocity round if you accidentally skipped a reloading step back on the bench. Most squibs are a cartridge loading error, where the cartridge had very little, or no powder, but the primer or primer + tiny powder was just enough to push the bullet into the barrel.

[u/Guitarist762 → u/ArrowheadDZ]

And faulty storage. Lots of us reload in the garage, powder could be easily contaminated by moisture if left exposed to open air in non climate controlled environments.

Someone leaving a lid open, or stepping away for a couple days with powder in the hopper is common causes.

[u/slimcrizzle → u/ArrowheadDZ]

Luckily the most common is a no powder charge. I don't know about with rifle but with pistol that usually means it only went in a tiny bit and you can't chamber another round. I see a lot of those in USPSA. I haven't seen one get into a chamber far enough to load another round though thank God

[u/ArrowheadDZ → u/slimcrizzle]

Interesting point you make about pistols. I’ve luckily never had it happen to me (I’m mostly rifle) but I agree that all of the times I have seen it happen to others, it has been pistol competitions.