Marc's Weaponized Math

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Here is the link to the article on the Math we discussed in the Podcast from Alaska


Weaponized Math Article

Take my 6.5, for instance, at my home range: 8.7 at 1,000 minus 5.8 at 800 equals 2.9 Mils of drop in that 200-yard gap. If I take that 2.9 and multiply it by .45, it gives me 1.3 Mils. Add that to my 800-yard data of 5.8 and it gives me... guess what...? What my TRASOL spits out for my 900-yard data!


8.7-5.8 = 2.9.


2.9 x .45 = 1.3


5.8 + 1.3 = 7.1 Mils


7.1 Mils to a water-line hit


This was great. Problem solved at 900 from now on, and it saved student ammo and instructor aggravation. I could now concentrate on the student’s wind call knowing that the data I gave him was elevation-correct, minus his input and windage. And it works in MOA or Mil, of course. I had created voodoo.
 
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A&8's

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Good read. Gonna sit down later this eve and compare cals to math DOPE.
 

TacticalDillhole

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Here is the link to the article on the Math we discussed in the Podcast from Alaska


Weaponized Math Article

Take my 6.5, for instance, at my home range: 8.7 at 1,000 minus 5.8 at 800 equals 2.9 Mils of drop in that 200-yard gap. If I take that 2.9 and multiply it by .45, it gives me 1.3 Mils. Add that to my 800-yard data of 5.8 and it gives me... guess what...? What my TRASOL spits out for my 900-yard data!


8.7-5.8 = 2.9.


2.9 x .45 = 1.3


5.8 + 1.3 = 7.1 Mils


7.1 Mils to a water-line hit


This was great. Problem solved at 900 from now on, and it saved student ammo and instructor aggravation. I could now concentrate on the student’s wind call knowing that the data I gave him was elevation-correct, minus his input and windage. And it works in MOA or Mil, of course. I had created voodoo.
still wont help you on a plate at 300 though Frank
 
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Timetoshoot

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Trying to simplify my work flow at matches I’ve gone back ti using paper dope sheets with 50yard intervals. This works for finding shots between my data points. 147 eldm @ 2740
1000 to 1500 I’ve been using .4
500 to 1000 I’ve been using .45
And inside 500 I’ve been using .5

I seldom miss due to elevation on 2 moa or bigger. Oh I definitely miss my fair share R&L.!!
 

slayer 2c

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Thank you for this Math, really helps with friends at the range!!!!

Question and I apologize in advance if its been asked before, I see a high speed number and a low speed number, but both of these numbers are no where near my numbers for fps. Any idea on how speed effects the results. I see tweaking and I know its just to get on steel I'm not looking for centered hits. But 6.5 for example is only running 2650's I got to assume that's gonna through off the math!!
 
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we see more variation in the shooter than the MV.

This is from the data we record from the class and their shooters, we monitor their dope

You can always plus and minus it a touch if you need it to line up too a different speed.
 

Rearden Steel

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Have a buddy coming out to shoot this week. He just a hunter with no real “math” experience when it comes to shooting.

I had @JC Steel build a truing target like the one Frank has posted.

Gonna start at 300 and work back in 100yd increments and use this method to get his dope for his 6.5.

View attachment 7135866
How far are you working back with Marc’s method?
 
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slayer 2c

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I used Mark's math over the weekend for a friends brand new AI in 6.5. It was spot on out to 600 yards. We started at 300 with 1.0mil had 10" steel circle at 400 and the math put him on it first shot. A minor adjustment to center line and some quick math put him on the plate at 500 with the first shot again. Again a quick adjustment to center line and some more math and solid hit at 600. All in all we had good data for that rifle within 1 box of ammo. Not only was it easy and effective it was a cost savings as well!!!!!

This is a great tool.....I've copied all the numbers and put it into my data book to use later. I know its just a matter of time until I go looking for it again.
 
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lowlight

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200 is a pretty standard value,

if you cannot hit 200, time to get a new hobby.

.5 Mils is the basic, 2 MOA with just about any caliber, the fine tune will be for location and MV

But you should be within an inch of 200 just using 2 MOA