Labradar 5.56 data 1168

Quote:

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Originally Posted by 1168

I actually tried to do that last week, but my optical chrono shit the bed altogether after like 15 years of owning it.

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Thats about MY luck, brother! If you ever get to tho, it would be great info.
If they are close, Im gonna ring up old asshole who told my figures were garbage and tell him a couple things.

Quote:

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Originally Posted by Straight Shooter

then some dipshit said if I took those wth an optical chrono.."I can throw those results in the garbage".

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I still stand by my statement.

Perhaps the only dipshit you see is the in the mirror.

Quote:

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Originally Posted by Straight Shooter

1168 or anyone else with a Labradar...could yall run these side by side with a regular chrono..something like a ProChrono just to see how accurate the less costly chronos are?
I had up some good chrono info myself, was up for six/seven months then some dipshit said if I took those wth an optical chrono.."I can throw those results in the garbage".
So I went back, deleted errthang and did just that.
Would be cool to see how close they would be tho.

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I would like to know the same. Been tempted to buy the gold standard but the cost …. If I knew it where hands down betta, I’d buy in a heart beat.

PB

Quote:

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Originally Posted by fedupflyer

I still stand by my statement.

Perhaps the only dipshit you see is the in the mirror.

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Then there is lots of "garbage" thats been printed for 30 years or more using optical chronos. I believe Ill listen to them & my own results before I listen to some jackwad who says shit without ANY proof to back it up.
Do like I suggested and prove it. Until you do, youre just another dipshit with an unproved opinion.
IM betting there aint a nickels worth of difference.

Guys, lets keep this thread data-centric, please.

~50F

*14.5” Noveske stainless/Rex MG7k .264

M855
Av 2851
Es 94
Sd 33
A few thousand rounds ago, this was a very fast barrel, approaching 3k in the summer with this same lot of M855.

Frontier 5.56 68gr
Av 2807
Es 285
Sd 77
I had to delete an outlier that blew the spread…3030fps!!!!! This is the part where I admit y’all were right and no one should shoot any Frontier, ever. Holy shit thats fast.


*16” Geissele/Sandman K

M855
Av 2937
Es 85
Sd 26.6

26.0gr CFE223/Hornady 62FMJ
Av 2735
Es 49
Sd 15.4

Winchester XM193
Av 3055
Only shot 6 rounds

Federal XM 193 AE
Av 3078
Es 42
Sd 13

Aguila 55gr ball 223
Av 2966
Es 99
Sd 31.7

“Bubba’s pissin’ hawt surplus powder 62gr reload”
Av 3005
Es 68
Sd 23.1
No matter how cold it gets, this stuff is too hot. I tried it in the 20s F and popped a primer.

*Comp’d G19 (KKM)
Fiocchi 115 ball
Av 1069
Es 93
Sd 31.3

Blue 115, 4.9gr CFE Pistol
Av 1107
Es 65
Sd 24.8
No cycle.

Blue 115, 5.1gr CFE Pistol
Av 1134
Es 81
Sd 27.9
Cycled sometimes.

Blue 115, 5.3gr CFE Pistol
Av 1200
Es 34
Sd 13.2
Mostly cycled. I should note that this gun has a newish (<2,000rds) action spring, and a compensator. However, if you want to use this powder with light bullets, you may have to launch them harder than typical yeeting loads. Might push it harder, might just keep using it with 147s.



Ok, now some weirdo shit.

*SW 442 snub

American Eagle 158gr LRN
Av 711
Es 49
Sd 20.1
Only 5rds were fired.

Fiocchi Classic 158 FMJ
Av 798
Es 34
Sd 13.6
Only 5rds were fired. By a friend. This stuff hurts to shoot.

*American Derringer Corp… thing. Looks like 3”-4” O/U barrels. Like 3.5” ish.

AE 158 LRN
Av 670
Only 2 rnds.

Fiocchi Classic 158 FMJ
Av 886
Only 2 rounds. If you want to shoot 10+ rounds through this thing, raise your hand.


*12” blowback PCC w/ Rex MG7k .458

Fiocchi 115 FMJ
Av 1268
Es 93
Sd 28.5

147gr custom FMJ load from Precision One
Av 1051
Es 29
Sd 10.3
The owner made a run of these for me with the goal of min USPSA minor power factor from a 4” pistol barrel, and a FMJ flat point. Side benefit is they seem to be subsonic through anything. I was quite surprised that they broke 1,050, since they are always so quiet.

When I can access my chronograph data I will add to the specific request from the OP. Regarding the precision of Labradar units Oehler 35P, or magneto speed units I have been witness to a single rifle (6.5 Creedmoor) firing with 5 yes 5 chronogrsphs simmolutaneously monitoring. The greatest shot variation was 3 feet per second. 3 LabRadar, one Oehler 35P and 1 Magneto speed.

Thats pretty cool. I want to get both an Oehler and a Magnetospeed, myself.

I would love it if some of you guys could/would run say a Pro Chrono, or just a regular chrono like most of us have, against those high end ones.
I may damn well be wrong..but Id bet an RC & a Moon Pie there aint TOO much difference.

SS 109 62 grain LC "19

11.5 BCM ELW 2767 ft/secs SD 11.6 ES 28

14.5 BCM ELW 2957 ft/secs SD 14.3 ES 35

16.0 BCM ELW 2957 ft/secs SD 25.5 ES 58

Note identical velocities recorded for both 14.5 & 16" barrels! Perhaps the small sample of only 5 rounds each was a part of this anomaly.