I spent some time at the three gun match Saturday scrounging brass off the range between relays. Â Got a whole crapload of .223 off the ground, but was happy to find someone was shooting .308, which I could use to make up a load so I could finally try the FAL I bought from TD. Â I was happy, until I saw what condition it was in:
I was puzzled by what kind of rifle would do this kind of damage to brass. Surely there was something wrong with this guy’s gun. Did the chamber actually have those stripes in it? In the name of John Moses Browning, what kid of crazy gun designer would create a rifle that tortures brass so?
After doing a bit of research, I discovered that this striping was likely caused by the fluted chamber of an HK91 rifle. Â The idea of fluting the chamber is to allow some gas to flow around the cartridge to ease in extraction. Â Apparently early versions of the G3 rifles were ripping the heads off the casing during extraction, so this was the solution to that problem. You can see that in a cutout of the G3 chamber here. Â The roller delayed blowback design of the G3 is just very hard on brass, from both the fluting, and violent extraction. Consensus on cases fired from G3s and its relatives seems to be that they shouldn’t be reloaded. Â The big dents definitely seals the deal. Into the scrap brass bucket they will go.
H&K — Because you suck, and we hate you, especially if you’re aÂ filthyÂ brass scrounging reloader.