These are used as a break contact weapon to stick out the window of a car and dump the entire magazine at the direction of the bad guys while the good guys get away in the car.
They are worthless outside of the vehicle and most are in 6.8 remington.
Thanks man. It’s all good. I think I will do a lot of reserch before I put together my dream SBR. This board helps. Mean while I will keep blasting my SMG. 
Brett-
in other calibers, you can build weapons that are much more effective than 5.56 in real short barrels. That’s all.
VSBR (VERY short barreled rifles) have a place- fun.
if you’re looking for a purely fun gun, then go 7.5… and if i was looking for a purely fun gun in 7.5, i might even consider a piston. i would use neither for offensive/defensive roll… but both, together, would make for an interesting project.
however, i don’t really do “fun guns” because i’m generally already pretty pressed for time on my serious training… when am i going to bust out a VSBR that serves absolutely zero purpose other than to give my shooting partners nosebleeds and have some laughs? so unless you have gobs of time and ammo to waste, anything shorter than 10.3 shouldn’t be considered.
Most of the time, the contractor ditches the 7.5" after its magazine dump and goes to a real SBR with a more effective barrel length during the get away or bailing out of the vehicle.
It’s funny. I have playing with and having fun with NFA stuff for just over a year now. I have a sub gun and a handful of suppressors and a couple of SBS’s. Having been involved in German Shepard breeding and competition for many years now, I thought for sure I could find a sanctuary in this NFA hobby from f&*ing know everything snobs like we have in the German Shepard world. I was sadly wrong. :suicide:
I think for self therapy I will go and buy another gun tomorrow. You can’t get me down. Let me know if any of you want a German Shepard puppy. They cost much more than NFA stuff and you can hang with brilliant people that have absolute confidence in that they know more about the hobby and or passion than anyone else on the planet. They are also sure that most other people probably should not be involved in their hobby/ passion because of their stupidity and lack of total commitment. Just let me know.:thank_you2:
When people bring up topics that have been discussed to death previously, or are fairly common knowledge, people tend to be a bit more firm in their corrections. You can either accept the fact that you don’t know as much as you thought you did and learn something, or act like a prick. I thought you picked the first option, but now you’ve taken an odd 180 degree turn.
Just about anything POF including the 9.25" qualifies for my hit list.
There are many things “I like” in life, that doesn’t mean I think they are useful, would depend my life on one, or spend money on one.
I know absolutely nothing about SBR’s and never pretended otherwise. I was only inquiring (as was the initial poster) as to what people thought of the 7.5" SBR. It was you that numerically listed criticisms of the man’s question. I found it pretentious and snobby. Sorry (not really). That’s all. Chill out man and enjoy the 2nd amendment. I do, and I think I will shoot about 200-300 9mm rounds (perhaps 50 subsonic) tomorrow afternoon in your honor. Then I will build a 7.5" SBR just for shit and giggles, and because I can afford it, shoot is once (after I receive the stamp of course) and put it away in my vast and expansive safe never to be seen again. God Bless you and may God bless America.
I think you’ve confused me for someone else…
Your post is semantics. In your previous statement, that I replied to, you agree with Scott. I was only arguing to Scott’s original criticism and then you posted an assured and seditious comment to my post. I was merely agreeing with you as it pertains to my knowledge of SBR’s witch is limited to non existent. However I am not a “prick”. All I ask is that in the “gun world” we do our best not to be snobs. Thats all, nothing more.
You did ask for opinion. Edited to say, sorry Brett, i thought you were the OP at first…
And to continue my opinion, I don’t find a 7.5" 556 gun fun. not in any way. YMMV.
It’s not snobbery to point out conflicting opinions and facts based on experience.
I’m not sure what guns you shot, but a 16" AR is reasonable in noise and blast… a 14.5" is very similar. once you get to 11.5 and then 10.5, it is loud as hell, and the concussion really blasts your face. At 7.5, you end up with a huge fireball and filling-loosening concussion.
If that’s what you want in a range toy, cool. It’ll get attention if that’s what you want.
Again, don’t be offended, but the fact at you didn’t experience mech problems/etc in your admittedly limited exposure doesn’t mean it’s not an issue. the component lifespan in a 7.5 gun is drastically reduced from a 10.5 one, and that is drastically reduced from a 14.5 or 16" lifespan…
I’m sure they can do close to MOA at 50 yards, but that is a short distance, and most of the users of this site are concerned with what terminal effects the bullet is going to have at 50 yards, 100 yards, etc.
From that perspective it’s not a good system.
Again, depending on what you want and are looking for, it might be a good choice for YOU. But, people expressing legitimate opinions doesn’t make them snobs.
Your post was to the point, respectful, informative and interesting. Also it was not at all snobby or offensive. I thank you for your input and I hope you have a great Christmas.
thanks, and I agree with you- everyone, just get out and shoot!
The last raccoon I shot with my 10.5", his whole body was facing toward me and I shot him in the neck. I was using federal M193.
The round went into through his body from front to ass. All his guts where hanging out of his ass.
The thing still was able to crawl out of the tree limb it was in and start moving on the ground. It took a second shot to kill him.
He was 20 yards away.
Think about that when you choose your barrel and your ammo.
Short guns demand expensive, engineered, and well designed bullets for expansion.
7.5" might be fun, but what if you have to depend your life on it because it is the only thing handy at the time?
guts were hanging out of his ass with xm193 from a 10.5? sounds like you seriously fucked him up to me, man. just because one round doesn’t produce a kill doesn’t mean the weapon/load is ineffective.
however- i do agree that a good SP is needed for SBRs. i’ve not yet ever shot anything living with a 10.5, but just based on my reading from docgkr and other term ballistics articles, it seems the intelligent thing to do. why chose a load that requires velocity you don’t have?