The Everyday Sniper Podcast, Jack Master (SH Member) Episode

[Lowlight]

We had Ted (aka @Jack Master in our MHSA Precision Rifle class, he turned out to be the perfect person to have on the podcast

Everyday Sniper Podcast

Ted was a great interview and a super smart guy to talk precision rifle

He creates the charts we have seen on SH,

We used his charts during the class and the results were fantastic!

I highly recommend looking into this stuff if you want to be more effective

 

[BLKWLFK9]

Can we get a break down of what each number and "zone" represents?

 

[Lowlight]

????

what do you mean ?

Its a cosine of the wind speed,

Read the full wind speed, then apply the angle offset to that

 

[BLKWLFK9]

Is this a wind rose that is specific for Ted's rifle? Looks like a 5mph gun.

I know how the percentages and degrees work. He has it stepped out for every 5mph?

 

[TxWelder35]

????

what do you mean ?

Its a cosine of the wind speed,

Read the full wind speed, then apply the angle offset to that

Sometimes makes you wonder how people even get their shoes on sometimes.

 

[BLKWLFK9]

I wasnt referring to how wind Rose's work. Believe me, I ain't new to this shit. I was asking if it were filled out for his specific mph gun. I guess I should have asked it that way instead.

 

[Lowlight]

The percentage are there, you'd have to it make it for your rifle manually I suppose

This is just a 5 MPH Wind reference. But the percentage of center is listed so you can adjust it accordingly

What you really want is an blank one that you'd fill in yourself,

Or ask Ted to make 4 MPH, 6 MPH, as well as 5 MPH that covers quite a bit, I suppose he can go to 8 MPH for 338 and such too

 

[Jack Master]

I was asking if it were filled out for his specific mph gun

NO
This chart is NOT RIFLE SPECIFIC! It is purely wind speeds and angle changed to pure cross wind value. Once you have your cross vector wind you must dope your rifle to this wind. In the example below you need to hold for a 9mph wind. Using the MPH method works well with this.

This rose is similar the old era rifle wind hold charts that were made for each rifle at each distance .... but its only wind speed. None of this is a hold value. Its a way to call wind speed more accurately.

Here is a how too

 

[BLKWLFK9]

This is just a 5 MPH Wind reference. But the percentage of center is listed so you can adjust it accordingly

This is what I was getting at. I meant to ask if this particular wind rose was filled out for a 5mph gun. I know it applies to all cals and mph guns. I was asking about this picture in particular.

I'm going to fill one out for my 6 and 8 mph guns. Thanks

 

[Jack Master]

I'm going to fill one out for my 6 and 8 mph guns.

If you fill one out for a MPH gun you'll need to incorporate Distance in it somewhere. This chart is not distance related. It can be used at 200 or 2000 yards just to get the wind.

Here is an old style that had to have each one for different wind mph and range. The above chart does not do this. Its only wind direction.

 

[armydog]

This is way cool, would lowlight also add his fundamental checklist? This would help me at the range during set-up practice sessions.

 

[Boon20]

Definatly going to use this next time out thanks for posting it

 

[seansmd]

Printing and adding to my data book.

I would love to see pictures of Jack's databook.

 

[seansmd]

Any picture of the weaponized math chart you referred to?

I've read and listened to the content, sounds like Jack may have simplified it further?

 

[Only Shooters]

Thanks, Jack for "putting this out there". Could you also please explain to me why there are 2 percentages in the center rings?

 

[Huskydriver]

This is sweet thanks!

 

[momo_]

Thanks, Jack for "putting this out there". Could you also please explain to me why there are 2 percentages in the center rings?

One is a Percentage (%) and the other is the Angle in Degrees

 

[Crews]

@Jack Master Thanks for sharing this. Is there any way you could put the clean chart up as an attachment like you did with the instruction page above? I'd like to print this for my data book.

 

[Jpohl86]

Does that chart apply to all distances.

 

[BLKWLFK9]

Does that chart apply to all distances.

The percentages do. The numbers he has illustrated is for a certain distance.

 

[Jpohl86]

I listen to all the podcast I can’t find the one on the math behind it that y’all take about. Witch one is it. I might need to take a class. Lol. Thanks for all the help.

 

[seansmd]

The percentages do. The numbers he has illustrated is for a certain distance.

Those numbers are only wind adjustments to a full value 90/270 wind, they are not holds it related to any distance.

 

[Jack Master]

Does that chart apply to all distances.

The percentages do. The numbers he has illustrated is for a certain distance.

This chart does not apply to distance or caliber. It is pure wind speed value.
Example - 20mph at 1:30 is a 14mph cross wind speed
The number in the center are for angle and percentage of used --> 20mph x 70% is 14mph --> 20 x Cos 45Deg = 14mph --> hold wind for 14 mph at 400, 600 or 1000 yards using your gun mile per hour.

 

[M8541Reaper]

@lowlight @Jack Master
Great podcast guys and thanks for putting this up for everyone to reference/add to their DBs. Between this, the gun MPH method, and keeping a shovel in your vehicle, Bigfoot (or the “oops”) doesn’t stand a chance.

Everyone else:
How many times does it need to be said that the chart is only for speed/value?

 

[Lowlight]

I think I need to dig a few holes here...

Wow, guys, it's not complicated, it's just a cosine so you have an off-angle speed.

 

[Jack Master]

Here are the charts

http://www.snipershide.com/shooting...aponized-math-moa-to-mil-jack-master.6964854/

 

[Jack Master]

Shooters
@lowlight
I have put together a couple charts that can help us all make better dope books. For My data book I like to cut these out, laminate them back to back then hole puch the card and place it in my data book. This an 8.5x11 piece of paper that could be folded in half to have all of your numbers.

Here is my typical data book page for drop charts with the wind rose on the back. The first row of the wind columns I usually put my rifle MPH and fill the column for that.
See the attachement for the PDF of each of these.
View attachment 7160415

Here is an example of my Card filled out for 8000DA
View attachment 7160417

Lastly - here is the weaponized math with the MOA-Mil conversion
View attachment 7160421

 

[Jack Master]

If any of you want to see what I did for the KRG Bravo weight system, here it is.
The same thread talks about KRG putting together a weight system for the Bravo but I have not seen anything of it yet.

http://www.snipershide.com/shooting...d-weight-to-their-bravo.6902409/#post-7532024

I built a Tikka CTR in a Bravo Chassis. I added weight to the frame in 2 places, the forend and the butt plate shims. I have a very good machinist friend that help me out this this. If anyone would like the Drawings I would be happy to share.

I had 3 goals with this weight system.
1. I wanted to be able to add and remove the weigh to fit the mission. If I go shoot P-dogs with is I will add the weight, If I have to pack the rifle I can make it light. Since the Bravo is designed to be light, why not keep the option?
2. To be able to Balance the rifle in front of the mag well. Once I shoot this barrel out and re-barrel it, I still want to rebalance it.
3. To add support to the extended arca rail. I ordered the long rail with the Bravo but found it has to much flex when the bi-pod is mounted on the cantilever section when preloading.

The system has 3 weights I can add. The first is a weight mount bar. This bar slides into the forend frame under the handgaurd and is attached to the chassis by the 4 mounting screws for the spigot. The second is a front weight that gets attached to the mounting bar. The third are steel shims in the butt plate. My intention is to always leave the mounting bar under the handrail in place and balance the rifle with the but plate shims.

Weights:
11.9lbs - Rifle stand alone ( Tikka CTR Factory rifle 6.5 Creed. Vortex AMG, Bravo Chassis with extended arca rail, Patriot Valley arms Jet Blast Muzzle break. no mag or ammo, No Ckye Bi-pod)
19lbs - rifle, bi-pod and full weight set. (ckye bi-pod - 1.46lbs)
I was able to add 5.64lbs of weights , plus 1.46lb bi-pod = 7.1lbs total added.

Balance point
1 - light setup, no bipod. The rifle balances with the weight bar added and no rear shims.
2. Light setup with Bipod. The rifle needed two rear shims added. Wt = 16lbs. This is an Ideal weight for me.
3. Full weight added, no Bipod. The rifle needed 3 rear shim plates.
4. Full weight with Bipod(far out). With 3 rear shims the rifle balanced about 2 inches in front of the mag well.

I won't say this is prettiest thing in the world but it sure did work. I will get it Blued (black) this supper.

View attachment 7022646

More Photos:
View attachment 7022637 View attachment 7022638 View attachment 7022641 View attachment 7022642 View attachment 7022644 View attachment 7022645 View attachment 7022647

 

[pell1203]

This chart does not apply to distance or caliber. It is pure wind speed value.
Example - 20mph at 1:30 is a 14mph cross wind speed
The number in the center are for angle and percentage of used --> 20mph x 70% is 14mph --> 20 x Cos 45Deg = 14mph --> hold wind for 14 mph at 400, 600 or 1000 yards using your gun mile per hour.

View attachment 7160308

Nice work but I believe there is a typo on the chart... Shouldn't the wind speed values corresponding to the 25mph ring at the 2, 4, 8, and 10 o'clock slots be 22 instead of 33?

 

[mjphawk]

This is awesome and will be getting laminated to hang from my tripod. Thank you.

 

[Jack Master]

Nice work but I believe there is a typo on the chart... Shouldn't the wind speed values corresponding to the 25mph ring at the 2, 4, 8, and 10 o'clock slots be 22 instead of 33?

Pell - Yes there is typo in this chart. Hop over to the other page I posted for the Data book sheets and it is corrected there.

http://www.snipershide.com/shooting...aponized-math-moa-to-mil-jack-master.6964854/

 

[Jack Master]

Here is the 4Dof hack that I did. I kind-a like this doing it this way and might keep doing it, if I have the dope.

http://www.snipershide.com/shooting/threads/4dof-app-vs-4dof-on-website.6964993/#post-8010727

 

[Quest1000]

I have my hard data printed out like the sheets above. When does Spin drift, erotically deflection and cotillions effect come into play and to what effect?

 

[Papamo]

What I understood from Frank's class is that all that stuff ie; spin drift, etc.. is already in your trued up dope as long as you are practicing good F.O.M

 

[Luvman]

This chart does not apply to distance or caliber. It is pure wind speed value.
Example - 20mph at 1:30 is a 14mph cross wind speed
The number in the center are for angle and percentage of used --> 20mph x 70% is 14mph --> 20 x Cos 45Deg = 14mph --> hold wind for 14 mph at 400, 600 or 1000 yards using your gun mile per hour.

View attachment 7160308

This chart appears to have a typo on the 25mph 2:00, 4:00, 8:00, and 10:00 positions. Should that be 22 instead of 33?

BTW awesome chart. I’m finally getting serious with learning wind and this is a great tool!

 

[Jack Master]

This chart appears to have a typo on the 25mph 2:00, 4:00, 8:00, and 10:00 positions. Should that be 22 instead of 33?

BTW awesome chart. I’m finally getting serious with learning wind and this is a great tool!

Check this thread out. Its corrected over here

Shooters
@lowlight
I have put together a couple charts that can help us all make better dope books. For My data book I like to cut these out, laminate them back to back then hole puch the card and place it in my data book. This an 8.5x11 piece of paper that could be folded in half to have all of your numbers.

Here is my typical data book page for drop charts with the wind rose on the back. The first row of the wind columns I usually put my rifle MPH and fill the column for that.
See the attachement for the PDF of each of these.
View attachment 7160415

Here is an example of my Card filled out for 8000DA
View attachment 7160417

Lastly - here is the weaponized math with the MOA-Mil conversion
View attachment 7160421

 

[Habituallinestepper]

Extremely valuable info. Thanks for passing this on in a quick and easy way

 

[Zero Fox]

Thank you for this. As I am new to long range and trying to learn how to calculate and understand all of the variables, especially wind, I was wondering if there was an easy way to figure for winds that are not running perfectly perpendicular to the bullets path.

Zero

 

[TreyMeTrey]

This is what I was getting at. I meant to ask if this particular wind rose was filled out for a 5mph gun. I know it applies to all cals and mph guns. I was asking about this picture in particular.

I'm going to fill one out for my 6 and 8 mph guns. Thanks

what does your 8 mph guncalculation rose/chart look like?