What causes my brand new SCAR 17 to failure to feed, nose down, 50% of the rounds. ( about every other round). I used new Federal Gold 308 ammo. I cleaned and oiled the gun (not oil the gas piston or gas block), the Gas piston rings are properly staggered and gas block is properly set at 12:00. All gas holes are not blocked. It's not the mag as I tried 4 brand new latest version FN factory mags , and its not the ammo as I tried different ammo. Happens when mag is full, or half full. Feeds o.k 100% of the time when the bolt is held back and a new mag is inserted and the bolt is released---but when the bolt is driven back by a round fired- the bolt is not properly feeding the next round, but very other shot "faiis to feed -nose down". Could it be the "bullet button" cause this? I don't think so because its feeds fine when the bolt is pulled back, and mag is inserted and bolt returned it strips off the top cartridge just fine .
If you own a SCAR 17 and this failure to feed- nose down, happened to you please tell me what caused it, and what you did to fix it.
I called FN factory gunsmith and he didn't know the cause of my failure to feed but after he verified I have the latest improved FN factory mags he suggested that i shoot 200 rounds of 7.62 Nato thru it to "break it in". He said the tolerances of the SCAR17 spring is tight. He said even though the factory uses Federal gold because it's the brand of ammo that works the best in the SCAR17 , he said that 7.62 Nato works better than 308 in the SCAR17.
One month later i found the problem: "Many replied to my previous thread "new SCAR 17 failure to feed" a few weeks ago. Thank you all for the many responses and suggestions--including suggestions of gas problem.
The problem was the aftermarket bullet button. (apparently either bullets were getting hung up in the mag or the mag was sitting too low). After making it featureless
I installed the original mag release and it now shoots 100% flawlessly and perfectly. Once i discovered the problem was the old bullet button, I then installed a new red lock brand bullet button on it to keep it legal. LOVE THIS GUN!