HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Topics » Justice & Public Safety » Gun Control & RKBA (Group) » Black Friday's 175,000 fe... » Reply #35

Response to Fred Sanders (Reply #31)

Mon Dec 1, 2014, 09:00 PM

35. It's "defensive" to point out that gun propellants burn, rather than explode?

Guns depend on a smooth burn to smoothly pressurize the chamber, just like car engines do. If you are familiar with the internal workings of gasoline engines, you know that a detonation instead of a smooth burn can destroy an engine, and the same is true of a firearm.

Here's what happens when gunpowder is ignited (skip ahead to 0:28 or so):



When confined inside an enclosed chamber, the rising gas pressure and temperature greatly accelerate the burn rate, but it's still a burn, not a detonation. For a typical small-caliber centerfire rifle, pressure peaks when the bullet is about an inch and a half down the barrel and gradually declines until the bullet exits and drops the pressure to ambient. Same as an airgun, just with a different source of gas and a much higher working pressure (55kpsi for a typical rifle).

And it's not pedantic to point out basic errors of fact, when *legislation* may end up based on it.

Reply to this post

Back to OP Alert abuse Link to post in-thread

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 56 replies Author Time Post
ileus Nov 2014 OP
Socal31 Nov 2014 #1
pablo_marmol Nov 2014 #2
Fred Sanders Nov 2014 #3
krispos42 Nov 2014 #4
friendly_iconoclast Nov 2014 #5
Fred Sanders Nov 2014 #6
Duckhunter935 Nov 2014 #11
discntnt_irny_srcsm Nov 2014 #16
Duckhunter935 Nov 2014 #17
discntnt_irny_srcsm Nov 2014 #21
NYC_SKP Nov 2014 #13
DonP Nov 2014 #14
Duckhunter935 Nov 2014 #18
Fred Sanders Nov 2014 #7
Straw Man Nov 2014 #8
Fred Sanders Nov 2014 #9
Straw Man Dec 2014 #29
ileus Dec 2014 #30
sarisataka Dec 2014 #32
discntnt_irny_srcsm Dec 2014 #33
DonP Nov 2014 #10
Fred Sanders Nov 2014 #15
sarisataka Nov 2014 #19
DonP Dec 2014 #27
Duckhunter935 Nov 2014 #20
discntnt_irny_srcsm Nov 2014 #23
Eleanors38 Nov 2014 #25
DonP Dec 2014 #26
ileus Nov 2014 #22
S_B_Jackson Dec 2014 #28
Fred Sanders Dec 2014 #31
Duckhunter935 Dec 2014 #34
LineLineLineLineLineReply It's "defensive" to point out that gun propellants burn, rather than explode?
benEzra Dec 2014 #35
Fred Sanders Dec 2014 #36
hack89 Dec 2014 #37
DonP Dec 2014 #39
Fred Sanders Dec 2014 #43
hack89 Dec 2014 #46
Fred Sanders Dec 2014 #47
hack89 Dec 2014 #49
benEzra Dec 2014 #38
NYC_SKP Dec 2014 #40
oneshooter Dec 2014 #42
Fred Sanders Dec 2014 #44
benEzra Dec 2014 #45
Fred Sanders Dec 2014 #48
GGJohn Dec 2014 #50
benEzra Dec 2014 #53
Travis_0004 Dec 2014 #51
Fred Sanders Dec 2014 #52
pablo_marmol Dec 2014 #41
Nuclear Unicorn Dec 2014 #54
Eleanors38 Nov 2014 #24
NYC_SKP Nov 2014 #12
mwrguy Dec 2014 #55
DonP Dec 2014 #56
Please login to view edit histories.