Hdfans said:
Yes I have tried other brands. Everything brass cased has worked, however I bought the gun because everything I read said I could use the cheaper steel cased ammo. If I can only use the expensive ammo. I will not get alot of shooting done. I don't work at this time and that doesn't pay to well.
It might be the gun, the ammo, or something else.
Could be the weather. I was running an ATI stock on my Mini 14 for a while. With that stock in place, there was more drag on the bolt. The heatshield in the stock is tighter than the original causing the Op-Rod to drag in the stock. Under normal circumstances this isnt a problem because you can add a little rem-oil and it slicks up fine and everything runs. But when the weather goes cold, that rem-oil combines with burnt powder and there is a LOT of drag in the system. I couldnt get thru more than three shots without the gun jamming due to it not going fully into battery.
In my case it was nothing to do with the Tula ammo I was running. It was a combination of temperature and an aftermarket stock.
I swapped back to the original stock and my problems went away.
YOu mentioned that your gun is Brand New. Well, is it really brand new or is it Like-new and some one else owned it before you? If it was used, the previous owner could have shot a few hundred rounds thru it, then done a partial cleaning (bore, external surfaces etc) and then sold it. It could be that a detail strip and cleaning will reveal that your Op-rod and gas piston are gummed up. You wouldnt see this unless you took the gun apart and examined it before buying it.
I would check that first. Then check for something else causing drag on the op rod, then check with the previous owner/gun shop where you bought it and see if maybe someone else installed one of those aftermarket smaller gas bushings.
In my experience, Tula ammo is fine. I have put ~300 rounds of it thru my Mini 14 with no problems. Its pretty accurate too.