re: Teach me about owning a firearm

I'd get a 9mm carbine for home defense, cheap, lethal round and plentiful. Plus a stock helps control your shooting and 9mm barely have any kick.

I have a 556 but I've re-evaluated my thinking on it lately for home defense. Better for neighborhood defense, but not really home defense.

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there is not much of difference, if any, between the db level of a rifle vs a pistol.

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I realize sould level is low priority in a SD situation, but I've heard both indoors with no ear protection. An AR15 is MUCH louder than a 9mm pistol. My head would be ringing after a few rounds of 5.56 indoors. 9mm is more of a pop.

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In general a 16 inch AR-15 firing standard M193 produces a decibel level of around 167 dB give or take depending on environmental conditions.

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As you can see...... a 9mm pistol typically produces around 160 decibels.

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dB levels increase exponentially, not linearly.

Get a Glock19 and call it a day.

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My reason would be That is you miss with an AR you will be spraying rounds into other rooms and even houses.

Pistol rounds have a much lower velocity and it’s easier to maneuver between doors with a pistol.

If you spray and pray with a shotgun you aren’t killing you neighbors.

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I'm pretty sure this has been debunked

The velocity of AR rounds tends to cause them to fragment quicker and offer less penetration that pistol rounds and buckshot

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Shexter

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Good points about decibel levels. I’m glad you brought some data to the table, which seems hilariously ignored by some in this thread.

Read up on auditory exclusion - you will rarely consciously “hear” something during a fight or flight response. Your ears may get damaged and ring after the fact but you likely won’t acknowledge it in the moment.

For this thread as a whole, the 223 round is one of the best for home defense out there. Being lightweight and high-velocity causes it to have a very easily-disturbed flight path. I witnessed this myself in a carbine course shooting a target at 10 yards. I was barely hitting the plywood barricade and my rounds were still key-holing at about 90 degrees on the target. They also offer a lot more ammunition and speed between shots with low recoil.

My wife could maybe handle 3” buckshot in an 870 but she can do infinitely better with the AR. The average person finds the AR15 easier to shoot and handle after the idea of the “big scary gun” is busted on the range.

This isn’t to say that 00 buck from an 870 is ineffective. If it’s your preference, have at it. But the AR15 is quite effective indoors.

This an AR fired indoors with no earpro will easily blow out your eardrums

AR? LOLOL

I just bought a 9mm Smith and Wesson and soon I’ll buy a shotgun. People can argue forever about what is best. If a pistol and shotgun aren’t enough. Then I give up.

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Rock Island Vr80 My preferred option for pandemic work: Rock Island VR80. 00 buck shells in 12 gauge.

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i cant comment on which is better...

but i own the VR80 shotgun. i love it. i keep it stored in the bed. these are AR style shotguns seem (to me) much easier controling recoil/staying on target. (highly recommend semi-auto shotguns)

a 9mm carbine is an awesome backpack gun. i carry a PC charger concealed in my briefcase. after folding the armbrace it fits perfectly.(leaving plenty of room for the laptop).. this is also 1st choice for home defense simply because i trust it the most. it is accurate in my hands. and the hundreds of rounds(and no misfires iirc) i trust it to be reliable
i dont have any kids.. and neighbors arent on the other side of a wall. i just want something that eliminates the threat as efficiently as possible.

in my hands a small pistol is least accurate...and most prone to jam.
so it would be my last choice for home defense.

All info can be easily found on the net. Training classes will vary in quality from one program to another. There is no standard training.