Sorry for the original bad quality image.
Just got my camera back.
Here is a close look.
There seems to be an adapter in between the bull barrel and flashhider. Does anyone have any idea?
The barrel on my AR15 is a DPMS 16'' 223 Bull Barrel and the previous owner installed a (not so commonly seen) customized flash-hider on that big barrel. It seems to be secured in position by a ring (as seen in the yeelow circle). But I'm not sure. And I don't want to bend the barrel when trying...
Thank you for all your responses.
With all the responses posted here and some other gun forums, the situation mentioned in the 2nd question (black residues on the neck after firing) is normal. It's caused by the gas remaining after pressure has decreased enough for the case necks to release...
I'm recently reloading .308 for my new remington 700 SPS Varmint. I used Lee Full Sizing Die and Bullet Seating Die.
But I met with two problems:
(1) Some of the ammo can chamber in while some won't. The bolt simply cannot close. The weird thing is that both the working and non-working reloads...
I have been shooting the Winchester 9mm Whitebox from Walmart for a long time.
But recently I found that the newly produced batches are really dirty. After each trip to the range (about 100rd per trip), I can always see the black dust on my hands and forearms. It wasn't this case in the past...
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