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Best Ballistics App 2025

Was it as simple as taking the chrony data and finding the right PDM to suit your DOPE?

Or not that simple?
Yes. The first PDM I tried had some weird output error I hadn’t seen before, even when setting up the Kestrel with an AB PDM. I just tried a different one. I do not expect Eley Team/Match/Tennex to differ much, and I haven’t seen it so far.
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Good ole Rhinos obstructing HPA again

I'll bet the NRA paying members have an average age of 60+, and they aren't gaining ground. Fudds and boomers jerking each other off while they sell out gun owners at every opportunity, while likely lining their own pockets. They will never get another dollar from me. Their list of "accomplishments" in the 21st century sets them right next to the dept of education on the short bus. They will die off soon enough, and the world won't miss them..

Kahles vz ZCO

The reason I have not commented is that this was a long voluminous conversation that did not look like something I should spend time to read through carefully.

I do not fully understand what was the genesis of the original disagreement any more than I understand where it went afterwards.

Figuring out both sides of the story would take time I am not willing to spend.

Perhaps even more importantly, I have been pretty much living out of a suitcase lately and sick as a dog for weeks now. I am tired, worn out and very limited in terms of what I am wiling to care about.

I am at the airport finally heading home for a few days. I have a PRS match to shoot in May and BOTC in June. I'll be focusing on those as time allows.

ILya
Yeah, I actually think the original goal or objective of the tread was either answered or achieved a while back. Recent posts ( mine included) were more ego or posturing. Not really sure that a “train wreck” warning should not be posted on the second half of the posts.

Pistol ar....lvpo vs red dot

The eye relief with an LPVO on a pistol is only a problem if you didn't set it up right. You can get an extra 3/4 inch of LOP by going with an A5 receiver extension and you can choose an LPVO or other magnified optic with a shorter eye relief. I run two 11.5 pistols. One has a 1-8x NX8 and the other an ACOG with red dot. Not all LPVOs have 4"+ of eye relief and most prism style optics run in the 1.5 to 3" range.

As far as unforeseeable scenarios go, I was talking about problems that I regularly ran into running a red dot. It's been said that not all civilians take shots to 300 yards or beyond. I can tell you that there are many of us that do and do so regularly.

When I said that about 300 yard shots I was talking about self defense or life safety shots. Not hanging at the range shooting steel. Two very different scenarios. I am sure a ton of guys lay at the local range and use their red dots for shooting at 300 yard and beyond steel.

Firearms Custom rifles for sale - 300 PRC, 22 ARC, 30-06

I have four rifles available from left to right -

Zermatt TL3 .300 PRC
SJA barrel
Hellfire brake
TriggerTech Diamond Pro Curve
Manners stock
Hawkins M5 DBM
Vortex Razor Gen 2 4.5-27 MOA
Spuhr Mount
Less than 100 rounds through the barrel
$6,200

Impact 737 .22 ARC
Foundation Exodus with custom paint from Foundation
Timney two stage trigger
Hawkins M5 DBM
Proof Competition Contour chambered in house at Snyder Precision
3 rounds down the tube
$4,000

Zermatt Origin LA 30-06
Short Action Customs chambered Bartlein barrel with 80 rounds through it. McMillan Game Scout stock
TriggerTech Special
Hawkins Oberndorf BDL
$2,000

Zermatt TL3 .300 PRC
Proof Carbon Fiber prefit
TriggerTech Diamond
KRG Bravo with Spigot mount
Hellfire brake
Vortex Viper PST 5-25 MOA
Vortex precision rings
$3,500

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Another wrinkle in the DUI for profit saga

I ate nothing but hamburgers for an entire month. Only a week in, and I didn’t want to see a burger again for the rest of my life. After a month I wanted to stop eating — forever. Even the smell of cooking burgers made me sick.

Ironically, I could still eat steak.

Moral of this story?

If all you consume is bad cop videos, is it any surprise that you’ll develop an intense hatred for anything that looks or smells like a LEO?

I hate bad cops, and those who protect them, and they should all suffer at the hands of non-binary rape gangs, but ACAB is still a bridge too far for me.

Kahles vz ZCO

So, a dude has to respond to being called a liar, right? So that’s the only reason I’m back.


I also can’t help but note that @koshkin hasn’t popped in to say I am wrong about his relationship with the ZCO owners proper (not including Richard/@CSTactical, who, afaik, are resellers).

But you are, no doubt, correct that he would rather sit this out. Nobody likes a too-hot steam-bath.

So, here’s a couple time stamps in one of his livestreams in which he mentions their spat. It involved FOV fudging, and that’s why he is going on about the Vortex and ZCO’s FOV. PLEASE, contact him if you don’t believe me or want more detail.
Login to view embedded media 1:02:00

Above, he does say “ZCO makes EXCELLENT scopes” right there too, btw, a sentient that I share because I’ve read lots of positive ZCO reviews. Imagine that. Reading reviews, passing on links to reviews. Positive or negative.

Here’s another timestamp in the same vid:
Login to view embedded media 1:45:17

I’m not speaking for koshkin nor am I his spokesman or good buddy, but I admit I have had a pleasant telephone convo with him once at some point about an unrelated matter.

ZCO seems to make great scopes, Richard seems like a nice guy, and CSTactical receives near universal praise as a seller. In some of the links I provided about ZCO problem reports, if it was a physical scope issue the problem was invariably quickly resolved.

I hope you can see I restrained myself greatly in this thread in order to remain cordial. Why I chose to finally debate this issue is to preserve the ability for people to actually discuss the positives and negatives about ALL gear, despite brand passion.

See you around and take care.
The reason I have not commented is that this was a long voluminous conversation that did not look like something I should spend time to read through carefully.

I do not fully understand what was the genesis of the original disagreement any more than I understand where it went afterwards.

Figuring out both sides of the story would take time I am not willing to spend.

Perhaps even more importantly, I have been pretty much living out of a suitcase lately and sick as a dog for weeks now. I am tired, worn out and very limited in terms of what I am wiling to care about.

I am at the airport finally heading home for a few days. I have a PRS match to shoot in May and BOTC in June. I'll be focusing on those as time allows.

ILya

BC Correction

A post with more information on the Oehler 88 at 2 miles would generate a lot of interest. Details on the downrange target and some sample data would really be appreciated.

In one of the papers on the website, Oehler wrote that under 1K yards, it doesn't really matter if you use G1 or G7 as the BC model. I was surprised by that, so I checked it by comparing range cards generated with each model. With the advent of CDMs, I added those to the mix as well. This is what it looks like for the OPs ballistics.



I started with the values in AB Analytics. Then I trued the G1 value to give the same drop as the G7 at the OPs last target. Looks like Oehler had a point. G7, CDM, trued G1 are on top of each other out to the last target. I also fit a straight line. There are at least of a couple versions of this out there. It's basically a mnemonic trick to avoid memorizing ballistic tables. You have to multiply and add in public and under stress, but it can work pretty well out to 6-800 yards with suitable cartridges.

Zooming in on just the errors, these are the differences at each range between the methods in the legend and a G7 range card.



It's not that G1, G7, CDM, or 4Dof don't give different results, it's that 1300 yards isn't enough range that they become significant. This graph also has a curve where the G1 was trued at 4K yards which is the last value in my template. This is intended to demonstrate that no, G1 and G7 are not the same.