Gun Talk

[uhhello]

39 minutes ago, Lord Ratner said:

If you're going to be using supersonic rounds, then it doesn't make a ton of sense to choose 300 blackout over 556. That's not to say 300 blackout isn't going to ruin someone's day, but the ballistics of 556 are more damaging in pretty much every configuration over any 300 black. Especially if you don't care about overpenetration, then then 556 is going to put the most damaging hole in the bad guy.

300 blackout is quiet, scary quiet, and not having to worry about deafening yourself while defending your home is one of the things I like about it. But 556 suppressed is still quiet enough that you probably aren't going to ruin your flying career defending your home, and you get all the benefits of the sheer ferocity of 556. 

If you absolutely need the shortest SBR, or want a hearing safe home defense gun, then 300 black makes sense. That's what I have. But if you're going to use super sonic ammo I'd probably stick with 556. 

Auditory exclusion is a thing that has been researched and validated from what I can read today.  I remember reading about it in one of Grossman's books (I think).  Essentially brain shuts down your ability to hear and even prevents the damaging effects in high stress situations such as fight or flight.  Very interesting.  

Ripped from wiki:
This is due to the increased blood flow in the eardrums that creates noise, causing the individual to lose hearing of the surrounding environment. This can manifest as a hissing or ringing in the individual's ears which consequently blocks out the noise around them. However, intentionally/voluntarily raising your heart rate to this level through exercise may not cause auditory exclusion. This is because the increase is not due to rapid hormonal changes that trigger the stress response, instead it is a gradual increase in heart rate as a result of exercise, i.e., it does not "shock" the body in the same way we do when encountering stressful situations.^[8]

Edited 3 hours ago by uhhello

[ClearedHot]

8 hours ago, brabus said:

@ClearedHot SBR/pistol AR shooting 300BLK subs. Keep in mind the 9mm is going to over penetrate just like the AR (or a shotgun) on clean misses. There is not a magic caliber that causes enough damage on good hits while also not penetrating sheetrock on clean misses. The most important factors in the HD scenario are practice and knowing where the area/directions are that you don’t want to shoot (e.g. your kids bed is on the other side of that part of the living room wall). A secondary factor would be where do you live (apartment vs. home on multiple acres) - do you have to account for neighbors? Pistol, shotgun, rifle can all be used effectively as long as the user is proficient and has thought through those “avoid this shot trajectory” situations.

9MM with a gas discharge suppressor will make the rounds sub...larger mass but also large area to absorb impact on errant rounds.  The layout of my house puts my sons room in the line of fire if I have to fight out of the bedroom.  I learned a LOT training with the lads when I was the TF commander...I am still a neophyte but they gave me the basics to plan and rehearse.  Aside from internal house structure, my neighbors would have two brick walls and 100 yards of protection...they are not the concern.  I've walked through numerous times and while I am reasonably good with my favorite AR, there are obstacles that would prevent fully swinging the barrel around, hence my interest in an MP-5 style weapons that is much shorter.

5 hours ago, Smokin said:

Ha, almost but not quite.  The exterior walls of my house are concrete, so almost a bunker minus the windows and doors.  The remodel is going to put the kids bedrooms on a different floor and/or in an addition behind those concrete walls.  Also, I live on a fair amount of land, so even if a bullet somehow found a window, the chances of reaching the neighbors house are so low as to not make it even worth thinking about.  With the layout/construction of my house, I'm not worried about errant rounds, so I'd have the option to empty the full 30 rounds, then use the mag swap time to assess if the threat had been neutralized.

I hear you brother but two considerations...kids don't always stay in place and .223 being a hot round can ricochet.  Throwing a full 30 round mag inside the house leaves much to be desired.

[Smokin]

Since we're on the home defense theme, I think a lot of guys overlook or underestimate the value of the passive home defense.  For example, according to the FBI, a house without a visible security system is 3x more likely to be broken into than a house with one.  Additionally, over 1/3 of break-ins go through the front door.  Most people way over-estimate the strength of their front door.  In a previous house in a good neighborhood, I discovered that our solid oak front door had been kicked in before we bought it when I was doing some other repair work (previous owner just glued it back and called it good).  The door jamb is the weak point with most being made of fairly thin pine going with the grain so it is easy to split.  A simple kick will bust in the jamb and trim and keep the door intact so that it will more or less close behind the assailant and a neighbor driving by would never know.  Home Depot has a $30 kit that would make this WAY tougher and might even break a foot first.  Spending $400 and a Saturday installing this and some cameras will drastically decrease the chances you'll need anything we've been talking about.

https://www.homedepot.com/p/Jamb-Repair-and-Reinforcement-Kit-59-1-2-in-Installed-Steel-Construction-White-U-11026/204254635