Now this is down right porn.

Guns, ammunition and the fact that they're on sale.

Now put a foot caressing that barrel and we're good to go.

Or pushing an ammo box around with a toe.

556 out of a 7.5 inch barrel is incredibly retarded

For those of us who don't know hardly anything about firearms, why?

because the cartridge was designed to be fired out of a barrel of a certain length. Shortening the length this much means that the dwell time of the round is dramaticly lower, therefore lowering the terminal effectiveness of the 556 to the point that it's a terrible choice

In short, it's gonna be slow enough that you're far better off a) using a barrel at least 11.5 inches in length or b) going with a chambering designed for a shorter barrel

I didn't realize there was that much difference between different calibers of bullets than size.

inside 50 yards, there isn't too much difference

but in terms of intended use there are far better cailbers to suit such a need

but outside 50 yards you begin to see the sharp difference

ideally 556 would be fired from a barrel at least 14.5 inches, ideally closer to 16 or 18 (the Mark 12, developed to get the best range out of 556, typically has an 18 inch barrel)

@MechMage if you're interested I can link you a much better explanation of this shit from a professional

Sure, but I can't promise I'll watch it tonight.

It's kind of interesting but not for 3 in the morning.

What you say is all true, but a short barrel 5.56 will still do its job within the range most people would use one for.

theoretically, yes

but there are a plethora of reasons to choose a different caliber if barrel length is such a sticking point

hell 300 Blackout fits within standard AR15 parts completely. All you need to swap is the barrel

I have a 10.5" and it's a blast to shoot.

I have no doubt

And I don't have to worry about finding a new source of ammo.

Mk18s are incredibly fun, and that's a 10.3 barrel

One other reason for a shorter barrel is if you want less weight overall. It is true you can also get a light barrel, but those can get expensive fast.

I still have my Constitution.

If I was being caused by people like that I would be within my rights to self defense.

And then no one would ever try it again.

@S8 as a Hoosier that road picture Kills me every time I see it.

Yo if you show up to the big Igloo with that 7.5 upper you can't be on my team

I went with 300BLK strictly because I wanted a short barrel. I also got to be at an indoor range at the same time as a guy who had a 5.56 AR pistol and *goddam* those things are loud.

Anything under 10.3 is a toy and a waste of money

You should be buying useful things right now

Damn, I'm 0.3" too short

You're 100% going to die

RIP bb

:(

@FitnessByHeatherHeyer
Imagine not being able to loot nuclear codes and all kinds of space age secret tech from work for when it all goes down.

Hope you're all ready for the Flananreich.