GUN STUFF

[ducpainter]

Reports are that CZ will be switching the entire 527 line in .223 to 1:9.

http://www.czfirearms.us/index.php?topic=59269.msg383351#msg383351

[duc_fan]

Well... looks like I either get to spend a ridiculous amount of money (Les Baer, etc), or wait.  Very little in the way of options.  Looks like the best bang-for-buck barrels are all sold out.

Sooooo... I need to entertain myself with the .300 BLK build for the time being.  Someone made a comment about the case walls being too thick on .223 to use for making .300BLK ammo.  Here is one guy making 300BLK from spent .223 without any reported trouble: http://www.theoutdoorstrader.com/threads/67339-How-to-make-300-Black-Out-Brass

I think when I am out of work for 2 weeks recovering from surgery, I might try to putter at my reloading bench on this.  Maybe start to make some real progress.  We will see.

[ducpainter]

I was at the range one day and there was a guy shooting .300 Blackout with homemade cases from .223.

[Bick]

A slightly larger caliber...

[cokey]

Awesome...

[Kopfjager]

300 Blackout vs 223

[WarrenJ]

Way back when, I swaged up a bunch of 230-240 grain lead tip, rebated boattail hollowpoints for the 300 Whisper - I'll have to see if I still have some sitting around.

[Monsterlover]

A slightly larger caliber...

How did they manage to keep the round in frame the whole time?

Don't they travel faster than the average camera man could track?

[MikeZ]

How did they manage to keep the round in frame the whole time?

Don't they travel faster than the average camera man could track?

Possibly multiple cameras then strung the videos together?

[Bick]

How did they manage to keep the round in frame the whole time?

Don't they travel faster than the average camera man could track?

I hoped to find more info.

Magic Cameras...

http://specialised-imaging.com/applications-and-results

[duc_fan]

Obviously it was a very high-speed camera, like those used by Specialized Imaging.  Two possible technical solutions I can see off the bat for trajectory tracking.

1) Image-tracking software driving the camera - Software is coded to look for the shape of the projectile, then "latches" it to the middle of the frame and commands the servos to move the camera to keep it mid-frame.  This video looks a little too steady for this method (there is usually some wander in real-world software-driven image tracking).  However, that could have been fixed in post-processing... shoot the field-of-view bigger than what you want in the final product, then post-process the video, cropping and centering the output frames on the projectile.

2) Preprogrammed camera panning, triggered to coincide with event start.  This just requires some applied arithmetic.  Ballistics is a pretty sound science.  It wouldn't be a huge project to predict the flight path of the projectile, then do the geometry/trig to keep the projectile's predicted location in the middle of the frame.  A few test shots with carefully prepped powder charges for consistency, and you should have these results.  Make no mistake... the maths are fairly straightforward, but the camera, mount, pan system, and trigger system all have to be high-grade stuff in order to follow the commands as precisely as needed.

Or... it's a really accurate-looking fake modeled on a computer.

[duc_fan]

Got my reloading bench set back up in the garage this past weekend.  I'm going in for surgery soon to remove a suspected cancerous spot on my lung.  During the two weeks off recovering, I can't be super-active.  So... I shall sit at my bench and putter on ammunition.  There is some .44 mag brass to reload and further work to do on the .300BLK.  I found some .300BLK factory Remington ammo a little while back and bought a couple boxes, so I will start off by using those as the basis for external measurements.

I may also attempt reloading some of my 7.5x55 Swiss.  Not much of that... only 10-20 cases to load.

Realising pretty quickly that I am going to need more of those neat plastic boxes for storing reloaded ammo... time for a trip to Cabela's, perhaps?

[Monsterlover]

I gave up on the plastic boxes. Yeah, they look cool all full and whatnot but a plain old ammo can holds a ton of loose rounds and has a rubber seal.

Headed to the range?  Throw a few hand fulls in a coffee can and get to it.

Or lug the ammo can. It'll weigh a bit full

[duc_fan]

Hadn't thought about that... but then I need more ammo cans.  I have 4 full metal cans, plus a plastic tub that's half-full of boxed .223, plus another plastic tub with a bunch of .45 and 9mm. 

Yes, I'm one of those crazies with multiple-thousand-rounds on hand.  Granted, it's all split up amongst different calibers.  And I'm obviously not to the level of the multiple-10,000-round enthusiasts.   There were a few of those in Prescott when I was going to school.  Guys at the gun store (J&G Sales) talked about ranchers who'd come in and buy 10k rounds of .223 for varmint control.  This was back when .223 could be had for 16 cents a round... then with volume discounts it'd lop a little more off that.

I think for the 7.5Swiss, I'm dealing in such small quantities that I'll stick with the neatly organized boxes so I can keep track of load data.  Once I start loading .300BLK in bulk, those will probably end up loose in an ammo can.

[ducatiz]

I gave up on the plastic boxes. Yeah, they look cool all full and whatnot but a plain old ammo can holds a ton of loose rounds and has a rubber seal.

Headed to the range?  Throw a few hand fulls in a coffee can and get to it.

Or lug the ammo can. It'll weigh a bit full

.30 cal ammo can = ~30 lbs full of 9mm
.50 bmg ammo can = ~50 lbs full of 9mm