Long Range 101 Part 61 - Intro to Advanced External Ballistics & Tables

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Күн бұрын

Ballistic tables are an intergral part of the long range rifle system. In order to make the shot you will have to know exactly where to index your optic. In this video, Rex introduces the topic of long range external ballistics and shows you what ou can expect to learn in the next portion of the series.
Rex's awesome Don't Tread On Me hoodie donated by: www.Save-the2nd.com
Review coming soon on the AWT (Applied Weapons Technologies) chassis system shown in the video:
www.appliedweaponstech.com/
All the music in this video was created by TiborasaurusRex, an unsigned artist. Copies of the forms, excel sheets, and any other documents being used will be provided ASAP.
Song Title: Particle Jam, Transient as a Shadow
Music and Lyrics by: TiborasaurusRex
Instrumentation and Vocals by: TiborasaurusRex
Recorded by: TiborasaurusRex

Пікірлер: 81

@TiborasaurusRex 5 жыл бұрын

Come train with Rex!!! It would be an honor to meet you in person! rexdefense.com/

@minervius 11 жыл бұрын

what I like about this video the crisp 720p (new) footage the seemingly leveled audio ( being able to watch without waking up my neighbors ) new info portion by portion with references to other vids

@rem308ca 10 жыл бұрын

Thank you for all your effort in producing these instructional videos. You are having a big influence on guys developing LR Rifle skills. And reminding us that math is cool!

@wvlongshooter3912 Ай бұрын

This information is so totally informative today as it was 10 years ago!!!

@TiborasaurusRex 11 жыл бұрын

Yup. That’s the best way to do it. Be advised that that initial point of intersection changes a little bit as you dial up and down, you can reconfirm this point on paper at close range simply by dialing in the various LR solutions in 100m increments and moving the paper till you are 'on'. Of course you can figure this out mathematically as well, but generally you’d still want to be shooting though a keyhole shaped opening, so you can see through it.

@Excedrine 11 жыл бұрын

Man, I would love to get that handy little chart that outlines external ballistics you showed at the beginning. xD You rock, dude! Keep 'em coming!

@jeffvalunas5277 11 жыл бұрын

T' Rex- Another Great series part! The Ballistic Tables Charts appear to have advanced quite nicely, as they look better in this video, than any of the other tables I remember seeing in the previous 60 parts of the series. I was also fortunate enough to have some time to watch both parts of the 4th Commandment videos. It is pleasure listening and learning from/with you on both topics. Which many may assume to be opposite sides of the "Spectrum", yet- I believe share similiarities beyond chance:)

@TiborasaurusRex 11 жыл бұрын

I will make the calc forms available very soon. I will show you guys how to figure out the constants using the ballistic data we gathered. Yes, they are very much caliber/BC/load specific. The tables provided should be a great way to go in most conditions. I usually just use the tables. Only when its a really weird or extra long shot will I bust out the old calc forms.

@TiborasaurusRex 10 жыл бұрын

Coriolis is a little goofy at first to understand... the two coriolis videos we posetd explain it all :-) Keep working your way forward, you are almost there!

@TiborasaurusRex 11 жыл бұрын

Yeah.... I can make that stuff availible online when I upload my next batch of docs. I'll post it in the description box on one of the next vids.

@emburgess7186 11 жыл бұрын

Great video...long cal sheets got me nervous..suck at math but hopefully that scientific cal ulator I brought way back when, helps..I recently did a rifle course in Lysite Wyoming with Jim Gilliland and man with all my prep time...I still shot crampy using my AB app on my smart phone...thinking it was my imputs that did me in...but still had fun and learned alot from Mr. Gilliland...what a great guy...

@Clickbangj 11 жыл бұрын

Thanks again Rex. You put a lot of time into this. We appreciate it.I'm learning a lot.

@JimFleming1953 10 жыл бұрын

Nicely done, as always, Rex. Thanks, friend.

@Excedrine 11 жыл бұрын

Sweeeeet! I'd really appreciate it. ;D This video series is really good, though, I must be honest. Calling it long-winded would be kind, but it's equally thorough and well worth the time.

@Velocity4000fps 11 жыл бұрын

I have a small ballistics data chart on my flip cap, good for those long shots on deer when you don't have time to get a PDA out.

@TiborasaurusRex 11 жыл бұрын

You got it, thanks for watching!

@MrM2hb 11 жыл бұрын

Great series.

@Jerry-Parker 5 жыл бұрын

Excellent information ! Excellent videos ! 5⭐

@MrSreese65 11 жыл бұрын

Thanks, man you videos are very informative and has cleared up a lot of questions I had.

@TiborasaurusRex 11 жыл бұрын

Both, use will depend on what data is provided by the bullet manufacter. If they give you G1, you must use G1. If they give you the option to use eithert G7 or G1, then go ahead and use G7 for most LR profile bullets, if you can. Full explanation coming soon :-)

@SocialRegressive 11 жыл бұрын

I go straight for 100 yards or meters, but it shouldn't matter much. Bullet drop is negligible at 100m with a modern centerfire cartridge. The important thing is to make sure that your rifle is immobile during boresighting. A little accidental shift while scanning between the two will cause problems.

@mrmikesgunrack 11 жыл бұрын

Thanks for the great videos nobody is putting this much info on KZfaq

@TiborasaurusRex 11 жыл бұрын

Measure from the center of the tube as it lies in between the front and the rear rings. Even if you were off - a 20MOA (1/3 of a degree) cant won't add up to be an easily measurable variation in height over the length of the scope.

@minervius 11 жыл бұрын

man the day pays off

@HALEdigitalARTS 11 жыл бұрын

Outstanding! Thanks!

@jreedmcu1 11 жыл бұрын

love the sniper clips

@shooter77us 11 жыл бұрын

Been waiting for this section more than any other. My ballistics app works ok but I hate depending on it.

@Muddlol 11 жыл бұрын

You da Man Rex!

@theclaymore5150 11 жыл бұрын

Great info as always, Rex. I find that I am always questioning my calcs when I enter my atmospheric conditions. My A.O. goes from 1000' to 1800'. Local range right now is 1205' above sea level, 72.3 F, pressure 30.12, 99% humidity (super foggy). Some ballistic calcs modify temp/pressure/altitude automatically. It can be maddening.

@bradmillis2065 11 жыл бұрын

Thought about it... Ammo and ambient kept at same temp, so I do match ambient on calculator to ammo temp. Duh. Just wasn't sure if it would compound things. Got some funky results otherwise. Thanks.

@TiborasaurusRex 11 жыл бұрын

Howdy! It may be wise to at least do a cleaning before firing and maybe at least one or two more after the first few shots are fired just to be safe. It will take a few shots for the freshly cut chamber to round-off all the new sharply machined edges, particularly in the throat region.

@Cogzed 11 жыл бұрын

I like your Psalms 144:1 on the bottom right of your spin/wind sheet! ;)

@jmjhartery1 11 жыл бұрын

Hey Rex love your vids keep up the great work man ! Is there any book you could recommend that covers all the stuff you will and have covered sorry for asking if you already have gave some examples but just figured I would ask.

@emburgess7186 11 жыл бұрын

jb ballistics calulator on line...free and has alot of helpful info...

@brr357 11 жыл бұрын

G'day Rex, and peace be unto you. Thankyou for your resource, I have really enjoyed your videos and appreciate the work you have put into it, cant say thanks enough. Down here in Australia, we have a lot more difficulty getting the optics you talk about in the affordable and of the spectrum but that's something i'll have to work through. my question is about an M98 I've had rebarrelled with a "near new" one my smith had, do I need to run in this barrel considering its only rechambered? cheers

@durhamdf 10 жыл бұрын

Cool I'll check them out, thanks a lot, just sub'ed

@emburgess7186 11 жыл бұрын

I was wondering the same thing, since I bore sited in the past at 100 or 200 yards and it's always got me on paper...going to 25 like going backwards...for me but if you don't have the 100 yard range to start with, 25 meters or yards makes sense.

@BigT27295 6 жыл бұрын

On the second third forth shot, how do you calc. the ammo temp. My guess is by practice practice practice?

@steelpanther88 7 жыл бұрын

I was just thinking that if you live in a relatively flat area, without mountains do you need to have multiple pages of ballistic charts one page for each possible shift in barometric pressure???

@shelbyville515 11 жыл бұрын

I also had one more question for ya. What type of IR temperature gun do you use for your temp readings as far as ammo and such? Thanks again for all this awesome information. I have binders of notes just from all your tutorials. Your the man!

@Phoboz77 11 жыл бұрын

I actually laughed out loud at the dead deer and hunter at 23 min... I forgot about those... lol

@emburgess7186 11 жыл бұрын

Good point...like the video clip where Rex's laser rangefinder was being fickal and could'nt get a reading and he had to actually use his retical to mil target range...awesome example of how murphys law can kick you so you better know how to do it the old fashion way...loL

@AnthonysOutdoors 11 жыл бұрын

What kind of stock is that on that remington action in this video? Looks interesting and light.

@TheCharillz23 7 жыл бұрын

i am confused ever data chart i have seen/ used software included calls for roughly a one mil hold off at 300yds for almost every cal, and i have yet to ever have to hold off a mil for 300,

@chuecops 11 жыл бұрын

Hi Rex. Great video as always. Do you have a temple?

@scudrunner101 11 жыл бұрын

Thanks Rex. Couple of questions. How much verification on the different temps is "enough"? Right now, obviously, the temps are fairly constant due to the season. Do you just keep adding to the data card then as you shoot in various conditions? How then is the rest of the data adjusted to reflect the actual hard numbers? Of my MANY weak spots, spread sheets and related software are at the top of my list. I know you stated that you weren't going to post a template, but would you reconsider?

@MrSreese65 11 жыл бұрын

Hey Rex, on your manual calc form, is this available? also on the constants used, is that from any ballistics program, is it caliber specific bullet's BC specific? Or should we not worry with the manual calc form and just use the very awesome ballistic tables you developed? Thanks man Steve

@TiborasaurusRex 11 жыл бұрын

Lol - That’s what happens when I do these for you guys at 3:00am ;-) Yeah, the graphics are awesome! I shall one day do a music video / cartoon using my awesome artwork!

@Excedrine 11 жыл бұрын

Helpful, but I was trying to refer to the chart at 3:36.

@YZFoFittie 10 жыл бұрын

"You can do it by feel if you're awesome"…PRICELESS! (thats what she said) haha

@durhamdf 10 жыл бұрын

I never understood coriolis effect. Even though the bullet is no longer attached to the earth when it's fired, shouldn't it have the same direction of momentum that the earth has since it is fired from a moving position fixed to the surface of the earth? Wouldn't it be like throwing a ball from one side of a plane to the other where the ball still flies straight despite the high rate of speed?

@jameseves9209 11 жыл бұрын

Hey Rex, If you wanted to shoot through a "loophole" would you have to put it at exactly the point of intersection....... just wondering ...... Thank you for TRIX-FBT

@bradmillis2065 11 жыл бұрын

Rex I know you field tons of questions but I'm putting tables together and hoping you can help. I began by entering MV and leaving ambient temp constant (70 degrees, my zero temp). Should I be raising the ambient temp on the calculator along with my mv's from the burn rate curve? It seems obvious to do it but I'm just curious if it would become compounded by essentially adding two curves to the ballistic table. I hope I'm wording this correctly. Thanks Rex even if you can't get back to me.

@grisum16 11 жыл бұрын

What do you use for a ballistic value? G1 or G7. I got some bullets with an advertised BC of .415 (Hornaday .308 150gr SST)but the calculators say that they have a different value. Also how many shots do you use to measure group size?

@N24MT 9 жыл бұрын

Great video Rex, hope you are doing well with your recovery. Dr. G as my coworkers call me.

@shelbyville515 11 жыл бұрын

You mention sight height as far as being important also, so my question is do you still measure traditionally even if you have a 20 MOA base or is there another consideration when measuring you sight height?

@TheRealJoga 11 жыл бұрын

Also with optics should you bore sight at 25 meters?

@durhamdf 10 жыл бұрын

Sorry meant the ball APPEARS to fly straight when thrown from one side of the plane to the other

@pv107 11 жыл бұрын

Beautiful place to shoot! Where is that?

@Gordo44mag 11 жыл бұрын

Not able to play any of these videos on my IPAD, any suggestions.

@fnf2000a3 11 жыл бұрын

What ballistic program did he say?

@Munky332 11 жыл бұрын

I'm not an apple guy at all, but i was talkin to a guy a couple months ago (back in march?) that was able to download youtube video's with an app that let him play vids offline. forget what it was called -- think maybe mctube??. i think it was a paid app, but IIRC it wasnt that expensive.

@TiborasaurusRex 11 жыл бұрын

I AM a temple. A 'living temple' that is :-)

@rhuffrod 11 жыл бұрын

Hey Rex, I have been looking at AR 30A1BT338 which has a 10/1 twist. The 300 gr. has a BC over .700... the bullet I would like to shoot. I was wondering what the twist is in that Surgeon you shoot. it's a little pricey for me. Your teaching is the best. I know you put a lot in in this. I also like your Bible teaching. We may differ on some points of theology but no problem, Jesus is still Lord of all.

@rainmechanic 9 жыл бұрын

Is that an actual example of a temperature MV curve? Does something like a 243 or a 308 really vary as much as 200fps from zero to 100 degree's? .... According to the chart used as an example the MV varied as much as 60fps between 40 - 70 degree's ... That is the normal temperature range in many places from sunrise to sunset... So that would mean you could see wide variations in MV depending on what time of day you make the shot... Do the short and fat (308) cartridges vary less then the long and skinny (300wm) ones?... are there certain cartridge design attributes that make this more or less of a factor? .... Planning and compensating for all these variable's is a bit more involved then i had imaged...

@davew2928 10 жыл бұрын

DBX AFS 224 or Behringer Feedback Destroyer?

@TiborasaurusRex 10 жыл бұрын

Dave W Wow, great ear... Behringer V-Tone DMX1200H.

@BigT27295 6 жыл бұрын

SWAG it and let it fly... Lol.

@richarduk679 10 жыл бұрын

Let's suppose that someone bought a scope which had a MIL reticule and MOA turrets (I believe that S&B make a 5-25x56 PMII scope with this setup) before they had the benefit of the viewing this series of videos. I don't know, perhaps they thought that MOA gives smaller steps that MIL and so would give a more precise adjustment or something. With the aid of EXCEL or programmable calculators, would it not be possible to factor in such a setup with relative ease? After all while it is an extra final step, it's just some constant... Or am I missing something?

@TiborasaurusRex 10 жыл бұрын

Yes, sir. We provide ballistic templates for this optical set up as well. :-)

@MavHunter20XX 8 жыл бұрын

+Richard UK Get a Mil-dot master slide rule computer

@richarduk679 8 жыл бұрын

+MavHunter20XX Thank you but I already have one. Now, if only I could find the instructions... Hey, no need, just watch part 95 of Sniper101 - problem solved:-)

@MavHunter20XX 8 жыл бұрын

Richard UK was that the recent one?

@AnthonysOutdoors 11 жыл бұрын

After seeing the price tag of $795 I'll stick with the McCrees Precision folder.