Semi Auto Crowd

[RL338]

Today at the range there was a guy with a semi that I’ve never seen before. He said it was a HK clone. Bolt handle was 3/4 ways down the barrel and mag feed in at 45*. The brass that came out of it was junk , it seemed to have a straight rifled chamber.

I’m just curious if anyone has seen this before and why would anyone want to groove their brass.

 

[RL338]

Well I took some time and googled “fluted chamber” and got the answer to was caused the brass grooves.
Not for this cat , brass is too expensive.

 

[TexasLife]

Either POF or NEMO has a chamber (at shoulder) there is 4 grooves for easier extraction. I wonder what that brass looks like on magnums (300wm)?

 

[PJGunner]

"Well I took some time and googled “fluted chamber” and got the answer to was caused the brass grooves.
Not for this cat , brass is too expensive."

Years back when those HKs first hit the market I picked up a bunch of that fluted brass and reloaded it, light at first then to full power. Worked just fine. First few cases were starting loads and when they worked fine I kept increasing the loads until I hit full power level. Never had a problem other than the necks would crack early on. I usually got 5 reloads before that happened. Used mostly as range brass but did rely on them for a couple of deer hunts. Money was tight so I couldn't afford buying factory ammo or even a bag or two of new brass. Made do with the fluted.
Paul B.

 

[RL338]

I guess this gives a new meaning of fire forming your brass to the chamber.

 

[Ridge_Runner]

fluting helps the delayed rollerblock action do its job, its job is to hold the bolt locked until the bullet is out of the barrel.

 

[wvbuckbuster]

Looked at some brass from a FAL that looked similar. Didn't try using any of it. Dan.