Comments on: slo-mo gun pr0n

By: Dave from Canada

Dave from Canada — Sat, 12 Jul 2008 18:51:30 +0000

You better hope that action doesn’t open before the bullet leaves the barrel – the result would be a potentially lethal blast of hot expanding gas in your face! Madrocketscientist is wrong: the M1A bolt is designed to lock until chamber pressure has subsided to the point where it is safe to cycle the action – ie. after the bullet has exited the barrel.

By: Seth from Massachusetts

Seth from Massachusetts — Wed, 02 Apr 2008 19:49:58 +0000

Actually there’s another little thingy involved. Pick up an M1 or M1A sometime and pull the charging handle back very slowly, and you’ll note the “Op rod” moves a little bit, perhaps a quarter of an inch, before the cam in it contacts the thingy which projects from the side of the bolt and forces the bolt to twist out of it’s locking recesses. That gives the bullet time to get out of the barrel and the pressure to begin to drop before the bolt unlocks.

By: Ritchie

Ritchie — Tue, 01 Apr 2008 02:36:17 +0000

Keep in mind that gas does not even get into the gas cylinder until the base of the
bullet goes past the gas port. At this point, the barrel pressure is roughly
5,000 psi +or- 2,000 , so things move right along then. The bullet is moving about
33 microseconds per inch, so just to pick a reasonable number, me not having an M1 to measure and all, let’s say the gas port is 6″ from the muzzle, so the gas pressure is contained for just about 200 microseconds before the cork (bullet) flies out the end.

By: SayUncle » Quick Gun Links

SayUncle » Quick Gun Links — Mon, 31 Mar 2008 15:31:54 +0000

[...] Guns in slow motion. [...]

By: Steve Johnson

Steve Johnson — Sat, 29 Mar 2008 05:25:30 +0000

Great to see another gun blogger. Great post.

By: Slow motion M1A | The Firearm Blog

Slow motion M1A | The Firearm Blog — Sat, 29 Mar 2008 05:22:41 +0000

[...] Gun Blobber, a new gun blogger, has posted videos of an M1A firing in slow motion Wow. Some guy has been at work with a high-speed camera and a couple of M1A’s. He was looking to settle a dispute as to whether the action starts cycling before or after the bullet has exited the barrel: [...]

By: MadRocketScientist

MadRocketScientist — Fri, 28 Mar 2008 21:21:10 +0000

Yep, it’s all about the momentum. In truth the bolt is moving as the bullet is still in the barrel, but the movement is so tiny because of the force of the spring and the mass of the bolt versus the mass of the bullet. The energy has already been imparted to the bolt, it just needs a split second more to get going.

By: DirtCrashr

DirtCrashr — Fri, 28 Mar 2008 17:29:31 +0000

Wow!!

By: Snowflakes in Hell » Blog Archive » Slow Motion Gun Porn

Snowflakes in Hell » Blog Archive » Slow Motion Gun Porn — Fri, 28 Mar 2008 14:21:15 +0000

[...] Go pay a visit over to The Gun Blobber. [...]