Steel Cased 8mm? Need for Hakim!

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Domino

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Bear with me a bit.

My dad gave me his old Hakim a couple of months ago, and I was eager to accept. The only problem was that it would not extract brass cased ammunition worth a darn. He had unwitingly fired a couple hundred rounds of "tester" ammunition through the Hakim. Only after firing his Yugo mauser with this "tester" ammuntion did he realize the extreme pressures that these rounds generated; he told me that he had to use a hammer to operate the bolt to eject the first round of this ammuntion that he fired in his mauser. Thing was, that he did not notice this in the semi-auto Hakim. It was after this time that the Hakim had started causing him problems.

So the first time I take this Hakim to the range (probably had been about 7 or 8 years since it had been fired) I tried various factory 8mm, Hansen and S&B as well as some mild soft-point reloads my dad had loaded for his mauser.
It would NOT extract many of these cases and we noticed excessive bulging of the fired cases. We came to the conclusion that this rifle probably had a headspace problem due to the hammering of the "tester" or machine gun ammunition that he had shot in the rifle years before.

Well, I really liked the rifle; the trigger was great, the sights were very easy to use, and it seemed quite accurate dispite malfunctions so I did not want to give up on it just yet.

I found a really great deal on some 1978' era Romanian steel core, steel cased, non-corrosive 170 something grain FMJ ammuniton, so i bought about 600 rounds. I took the rifle out today with my new gas port tool and used the proper method of testing new ammunition with the Hakim; by closing the gas port and slowly working your way up until the rifle cycled properly.

Turns out this stuff works GREAT! Absolutely NO extraction failures OR case bulging! The only malfunction I had was the occasional premature bolt hold open or failure for the bolt to hold open (probably magazine related?) but that was it. This stuff shot around 1 MOA as well as straight through a 14" tree.

What may be the problem with this rifle??
AND
Where can I get New production Steel case 8mm?
 
Was the gun adjusted for the older ammo your dad fired?

In other words, it sounds like you were the first one to properly adjust the gas key to match the ammo pressure curve, but only on the Romanian FMJ ammo you recently bought, not the older stuff. If the gas port was set wide open when your dad fired the steel-cased ammo, chances are the gas system extracted the round while there was residual chamber pressure, causing the bulges. Sometimes, when the gas port is opened too much, the extractor will rip the rims off the cases. :(

Regardless, try some different types of ammo. Don't forget that U.S. domestic 8mm Mauser ammo is underloaded to the power levels of .30-30 Winchester. I buy the stuff, shoot it for the brass in my Mauser, and reload it for my FN-49, using proper European-spec load data.
 
Im pretty sure the gas port was wide open when he first shot the rifle :banghead: . The first time i took it out, I had to dissassemble the foregrip in order to adjust the gas port. It failed with all brass cased ammunition under a variety of settings, so I decided that I would get a gas port tool and try to find some steel cased ammunition. I will certainly try some domestic 8mm now that you mention to power levels. Thank you for the response and helpful advise!
 
What Gew98 says...

Too much gas will rip the rims off the "extracted" cases and often blow the case heads...

Work up the gas from none as you ended up doing and all should be fine, including with brass cased ammo...
 
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