Just a matters of opinion

[THE Flapjack]

I’m not sure where to post this, but this seemed a good place to start.
Just to be clear, I’m only asking for one line opinions, actually 7 lines ;-)
The picture is of the of the 7 calibres I shoot, made for me by Tony at Ballistic Concepts (https://www.etsy.com/uk/shop/BallisticConcepts)
Tony made each one from the components I supplied him.
The board is just a mock-up at the moment to decide on how to display them.

When finished, alongside each calibre, I’ll have a laser engraved plaque with the calibre, bullet details and here comes the matter of opinion, its maximum range in yards.
I need to put a pin in “Maximum Range” and decided it is, IGNORING human factors and assuming an optimum load, the ability to hit a 2 MOA target 100% of the time at sea level, nil wind, ICAO temperature & pressures.
So, your opinions please on the following (it’s just a display, not a competition and don’t need a Thesis!)

1. 33XC with Badlands Precision 285gr ICBM-2 (G1 1.010)

2. 338 Lapua Magnum with Parker Products 300gr Aluminium Tip (G1 0.960)

3. 7mm Remington Magnum with Hornady 162gr ELD-Match (G1 0.67)

4. 6mm Remington with Barnes LRX 96gr (G1 0.436)

5. 22-250 with Sierra 77gr MatchKing (G1 0.420)

6. .17 Remington with Nosler 20gr Varmageddon (G1 0.183)

7. .22LR CCI Segmented Copper coated 40gr (G1 who cares!)

Thanks in advance
Jonathon

 

[brianf]

I fell bad for you...lol

I know what you want and it’s a good idea but this will be a shit show soon

maybe pm a few guys who seem to know what’s going on by their previous posts.

 

[Texasflyer]

Go with your max range.

 

[6.5SH]

The result is still a SWAG but closest you'd get would be a WEZ analysis from:

AB Analytics Package - Free ''Accuracy and Precision'' Book - Optional

store.appliedballisticsllc.com

You can get an idea what the tool provides here:

Ballistics Calculator | Applied Ballistics, LLC

appliedballisticsllc.com

But the output is limited and you can't select 100% Probability

No idea if there are other free tools that do similar.

 

[brianf]

like the post above

maybe just run published velocities and BC with a ES of 30FPS (thats pretty good reloading)

so if the velocity is 3000 runit for 2985 and 3015...

run a bunch of scenarios through a ballistic calc and stop when it goes over 1/2 moa up and down from point of aim

figure at best 1 moa is attainable at the max supersonic range of a cartridge with a "berger" class bullet

so 1 moa + .5+/- equals your 2moa max ...thats your range

 

[6.5SH]

Is a free one but the input terms are a bit unclear in places:

Hit Probability Calculator

A free hit probability calculator for long range shooting.

bisonballistics.com

 

[THE Flapjack]

I fell bad for you...lol

I know what you want and it’s a good idea but this will be a shit show soon

maybe pm a few guys who seem to know what’s going on by their previous posts.

I know what you mean, I just need 7 opinions I think reasonable ;-)
I watched the YouTube of 7mm Rem Mag at 3030 yds on 60"x60" with two on out of ten but even in nil wind, I doubt 10/10 was achievable.

 

[brianf]

I know what you mean, I just need 7 opinions I think reasonable ;-)
I watched the YouTube of 7mm Rem Mag at 3030 yds on 60"x60" with two on out of ten but even in nil wind, I doubt 10/10 was achievable.

look at the competitions 10/10 at a 2moa plate past 1500...not happening
and thats with the big boys as well as the smaller 1 mile rounds300 normas and 338 etc

there will be some but not expanded to 100 out of 100 and such

 

[THE Flapjack]

look at the competitions 10/10 at a 2moa plate past 1500...not happening
and thats with the big boys as well as the smaller 1 mile rounds300 normas and 338 etc

there will be some but not expanded to 100 out of 100 and such

Thanks, I take your point and it is true, but I did say ignoring human factors and weather.
I should have said "using a bench rest rail rifle in nil wind ICAO day at sea level"
I think I've been given the tools now to come up with some figures based on the theoretical world, not the real.

 

[THE Flapjack]

The result is still a SWAG but closest you'd get would be a WEZ analysis from:

AB Analytics Package - Free ''Accuracy and Precision'' Book - Optional

store.appliedballisticsllc.com

You can get an idea what the tool provides here:

Ballistics Calculator | Applied Ballistics, LLC

appliedballisticsllc.com

But the output is limited and you can't select 100% Probability

No idea if there are other free tools that do similar.

Thank you for the links (NOT). Spent a fortune buying the Media Bundle, Analytics and Effective Range of Small Arms Nook!