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Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

Right, the data points are there but which data points are more accurate than the others?

How to identify and weed out the bad data points?

One unit may record lower ES or SD than the other but which one is correct?

The spread between all 6 units for 80% of the shots was less than 4.2fps. A 4.2fps error in a ballistic engine for my 6 creed load would be a MAXIMUM potential of 0.84" at 1k and with a simple RSS assessment on a rifle shooting .5moa at 100yrds shows it would only account for less than .1" at 1,000yrds. Equally, realize, the average displayed by all 6 units were only 2.7fps spread from fastest to slowest, so HALF of that potential difference at 1,000yrds. Within this dataset, ALL of the singular results were incorrect, because the variability of the ammo itself, but for each data point, the potential error from one unit to the other was very tight. So as I mentioned above, either ALL of them are good enough, or none of them are. A 99% confidence interval for this particular dataset, however, shows any given one of these units would only be potentially within ~9fps of the true average - even after 100rnds - so this dataset isn't seeking truth, it's seeking comparison. When we're only an average of 3.5fps spread among the 6 units with a set which only held +/-9fps for a 99% confidence interval, eh, nah, they're either all telling the truth, or none are. Even if I only took ONE shot, the odds of being "wrong" have nothing to do with the unit being used to measure the velocity, and everything to do with the consistency of the ammunition and the relative insensitivity of our trajectory to such small variations in velocity.

Vertical spread is a half decent litmus test for validating recorded speeds and figuring out which unit is lying. Barrel whip not-withstanding.

I'll readily admit, I'm not sufficiently skilled as a shooter to be able to tell the difference of 0.06" at 1,000 yards in my groups to determine truth between two chronographs showing 4fps spread among them. Certainly, my subsequent testing using a better performing centerfire load instead of this cheap and shitty 22LR ammo will improve ability to determine validity of result, but again, I'd have to be able to hold less than 1/10th of an inch difference at 1,000yrds to be able to tell the difference.

Anecdotally, I've used my Garmin velocity over the last 2 seasons to hit 1.5moa targets with 1st round impacts as far as 2200yrds. This is with a load which typically displays 5-9fps SD's for 10 shot strings, and 7-10 SD's for 60 shot SD's. A 99% Confidence interval for this load would be +/-3.2fps. That potential 6.4fps variability in the 1% uncertainty describes a difference of 19.16mils vs. 19.25mils at 2200yrds... One click in my scope, on a target about 5 clicks tall - and I'll be honest, I just don't shoot well enough to hold my shots within 1 click on the turret at 2200yrds.

So I struggle a little to conceive of any application where I REALLY have the ability to differentiate with live fire between any results as close together as the above dataset describes. I generally have control at 2000-2200 where my waterline is within ~0.3mils using velocity obtained via my Garmin, so to think I'd dial off 0.02mil less if I were using the LabRadar or dial on 0.03mil more if I were using the Athlon, eh, I'm pretty sure I can't shoot the difference between the 3 brands.

I do, however, have a MacDonald TwoBox acoustic chronograph unit which claims to be true within +/-1-2fps, which is tighter than the potential +/-0.1% of these radar units. Set up is a massive pain in the ass, requiring level and straight installation across 15ft span, so if this works as described, this would be my most accurate opportunity for "true" velocity within subsequent testing out of the 8 different chronograph units I have on hand. Data for this forthcoming with sunny weather. But reminding, as we see here, we have high confidence that the "truth" is somewhere between the min and max of these 6 units, and despite being the minority result, any of the 6 units each demonstrated the highest, lowest, and median results throughout this dataset.

The Shot You’ll Never Forget Giveaway - Enter To Win A Barrel From Rifle Barrel Blanks!

Episode One of three that come to mind.

I was elk hunting during late cow season in the fall of 1973 with a high school buddy. We were driving up a little two track road along North Fork Creek, in Snowy Range west of Laramie Wyoming, at first light in my dad's 1969 Bronco. There is a series of beautiful grass meadows along the stream. I remember telling Ernie (my hunting partner) that it would be nice if we could catch a herd of elk out in one of the meadows. You guessed it, we spotted a herd of about 50 elk, most were feeding but some were bedded down. We did a short sneak and got about 150 yards from the elk. The plan was for me to get first whack, then Ernie would fling some lead.

I got a good solid rest over a downed tree, and gently squeezed the trigger on my Remington 721 30-06 as I peered through my old Weaver K4 scope. The rifle shot shattered the quietness of the brisk morning air, followed by a thunderous thump as splinters flew in every direction from a tree stump about three yards in front of me. The entire herd hauled ass in the opposite direction, which is really strange because they typically would exhibit enough confusion for me to get another shot.

Meanwhile Ernie is poised to launch a round offhand at the running elk from his old Montgomery Wards Western Field rifle as the elk ran into the timber on the far side of the meadow hundreds of yards away. He (Ernie) proudly announced, "I got the bitch". I recall replying something to the effect of, "Bullshit, the lens caps are still on your fucking scope". We then trudged across the meadow and there laid a portly dry cow elk, with a bullet hole right behind the ear.

Movie Theater Mission Impossible 8 / Final Reckoning

Saw it. Wasn't bad.
It did have a few to many flashback cuts, but I suppose that just the Directors call to pin it all previous together for this final plot and ending . ( for me ) Still not a deal breaker on the movie . A few of the MI movies I choose to not see on the Big screen, and just wait and stream. For this final MI, it really mandates the full theater experience the way it was intended for the fans. It's a high budget production and it really shows well.
I waited for this weekday after busy Memorial holiday release. Went for a light customer 9:30 PM showing. Watched nice and comfortable sitting in the plush recliner seating section.

---> Just a suggestion if anyone seeing in the theater. Don't drink fluids ...LOL , I pounded down a Large Mocha just before walking in . MI #8 is almost 3 Hr. long.. My Bladder Was On It's, 'Final Reckoning' by the finish credits .
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An arrest? An actual arrest? With charges?

Have you ever had a federal credit card?
Nope… just company ones and if I used them inappropriately, I would be fired. Every penny had to be turned in and accounted for on travel or purchase forms.

They do that in the private sector.

Apparently not with our tax dollars.

Sirhr

Smarter Than You

Not even a little bit. Anything important has safeguards, and there will be nothing but a small blip in the news.

The energy of the actual 1859 Carrington event would fry out massive numbers of systems. It’s been war games by DoD and insurance companies for a number of years.


We have not had a direct hit at that level since 1859. When the energy was enough to cause telegraph lines to burn and start wildfires.

There may be safeguards at a certain level. But they won’t be enough.

Sirhr

An arrest? An actual arrest? With charges?

And every federal employee who abused one of the credit cards that supposedly racked up millions or tens of millions in bullshit charges should be fired on the spot. No question no nothing. If you use your federal credit card at a golf course or a strip club or a weekend resort, you are fired. Because you can’t be trusted.

I could live without prosecuting them because it would just cost too much money and time. But you are fired. And never never can you apply for a federal job again, that would suffice.

Now go find work in the private sector with the “I was fired from the federal government for miss using my credit card“ and see how long they last before they are digging ditches or working at Burger King. Someone’s gotta pick the melons might as well be federal workers who can’t be trusted. Put their fat asses in the field.
Have you ever had a federal credit card?

Smarter Than You

pray for increased solar storms. they took out even telegraph lines back in 19th cent. be interesting to see if AI can survive same level of power.

Not even close to survivable. Another full scale Carrington event will zorch 50 ton transformers and knock planes out of the sky. AI will have zero chance of surviving because there I’ll be no electricity!

Sirhr