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  1. BryanLitz

    230 Berger (.743) what's everyone running

    H1000 and H4831SC are both good temperature stable choices for the 230's in 300 WM. You'll get about +100 fps with MAGPRO, but that's a double base and hence more temperature dependent powder. With MAGPRO you can push the 230's 2800 fps+ out of a 24" barrel. That's loaded to 3.600" COAL...
  2. BryanLitz

    Range Report Applied Ballistics Mobile App

    I'm pleased to announce that AB Mobile (https://play.google.com/store/apps/details?id=com.appliedballisticsllc.appliedballistics&hl=en) now has custom drag models for all 225+ bullets published in "Applied Ballistics for Long Range Shooting". Till now, the library of custom drag models only had...
  3. BryanLitz

    Shooter or applied ballistics app for android

    Much of this was mentioned above, but I'll repeat for clarity: Shooter and Applied Ballistics Mobile were both programmed by Sean Kennedy. They both use my solver and BC library. Shooter is available on android and iOS; AB Mobile is currently only on android but plans are to get it on iOS...
  4. BryanLitz

    New US Military .300 Win Mag Match MK 248 MOD 1

    I've also found that standard large rifle primers produce better groups and lower SD than mag primers in 300 Win Mag, systematically, for a variety of powders. H4831 and H1000 are good temp stable, single based powders to use with the heavy bullets. Magpro will get quite higher velocity, but...
  5. BryanLitz

    Range Report Just bought Litz's books

    Thanks for the review. Regarding new bullets... Given the current demand and timelines for shipping orders, management has decided that our production resources are best spent filling orders than prototyping. As eager as I am to see some of these new bullets made, it's hard to disagree with...
  6. BryanLitz

    Sale on Applied Ballistics books

    So far in 'March is Reading Month', our book sale promotion has raised $48 for the '100 Libraries in 100 Days' campaign! http://igg.me/p/100-libraries-in-100-days/x/2664845 As a reminder, the sale is $5 off both Applied Ballistics titles, and $1 from each sale is donated to the '100 libraries'...
  7. BryanLitz

    Range Report Just bought Litz's books

    Mr Culpeper, I now see your concern, thanks for explaining. The reason I 'singled out' the 168 SMK has a great deal to do with nilescoyote's comments. It's possibly the most well known and misunderstood bullet in all of long range shooting. Many people have the same problem with this...
  8. BryanLitz

    Range Report Just bought Litz's books

    What exactly are you looking for? McCoys papers on this bullet describe the dynamic instability in aeroballistic terms; tables of numbers, 6-DOF simulations, etc. When someone asks 'why' the numbers are what they are, 'why' the dynamic instability, the physical answer is related to the boat...
  9. BryanLitz

    Sale on Applied Ballistics books

    Applied Ballistics Press Release In honor of March is reading month, Applied Ballistics is running a sale on both ‘Applied Ballistics for Long Range Shooting’ and ‘Accuracy and Precision for Long Range Shooting’ books. Thru the end of March, both titles will be discounted by $5.00 from our...
  10. BryanLitz

    New US Military .300 Win Mag Match MK 248 MOD 1

    Here are a few documents that may be of interest to this thread: 300 Win Mag performance with various bullets: http://appliedballisticsllc.com/300WinMagWEZ_Rev1.pdf 300 Win Mag vs. 338 Lapua Mag performance with various bullets: http://appliedballisticsllc.com/300_338_Rev1.pdf -Bryan
  11. BryanLitz

    Shooting Book

    Thank you for the recommendations guys. Radar, Sorry about messing up the signature option. Can I send you a T-shirt to make up for it? email me your shipping address, color (blue or gray) and size preference and we'll ship you one free ([email protected]) -Bryan
  12. BryanLitz

    Range Report Just bought Litz's books

    Thanks for your comments guys. FYI, The .30 cal 168 SMK tumbles due to dynamic instability. Specifically, the instability is caused by the 13 degree boat tail: too steep for the boundary layer to stay fully attached, too shallow for clean boundary layer separation off the bearing surface. The...
  13. BryanLitz

    Range Report Question on Litz Bullet Measurements

    Re: Question on Litz Bullet Measurements <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Culpeper</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">For the example of the .30 cal bullet with...
  14. BryanLitz

    Range Report Question on Litz Bullet Measurements

    Re: Question on Litz Bullet Measurements For the example of the .30 cal bullet with a 2.156R dimension; that means the circular arc that makes up the ogive is 2.156*.308 = .664 inches. Ogive radii are given in calibers so you can compare designs across different calibers. For example, a...
  15. BryanLitz

    Range Report Tweaking JBM inputs...where do I start?

    Re: Tweaking JBM inputs...where do I start? If you're off at 400, I would be most suspicous of your scope adjustment. Are you really getting what you're dialing? BC error shows up at greater ranges than 400. To check scope adjustment, shoot at 100 yards. 1 group with your 100 yard zero...
  16. BryanLitz

    Range Report Bullet "Settling/Laying Down" - Fact or Theory?

    Re: Bullet "Settling/Laying Down" - Fact or Theory? Some thoughts/research on the subject: http://appliedballisticsllc.com/epswerve.html Note the video can be misleading if you don't read the article. Also be careful not to get hypnotized! -Bryan
  17. BryanLitz

    115gr Dtac 6mm Sectional Density?

    Re: 115gr Dtac 6mm Sectional Density? In words: SD = bullet weight in grains divided by 7000 divided by caliber squared. Formula: 115/7000/.244^2 = <span style="font-weight: bold">.278</span> -Bryan
  18. BryanLitz

    Anybody using Hornady 140gr 6.5mm BTHP?

    Re: Anybody using Hornady 140gr 6.5mm BTHP? <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Rob01</div><div class="ubbcode-body">O<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Temp9</div><div class="ubbcode-body"> Hornady likes to...
  19. BryanLitz

    nosler to release a new long range accubond???

    Re: nosler to release a new long range accubond??? <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: oneshotkyle</div><div class="ubbcode-body">sure sounds like a far fetch from where there bullets are now. where's brian litz and his opinion </div></div>...
  20. BryanLitz

    Does Ratio of BC to Gr Weight Matter?

    Re: Does Ratio of BC to Gr Weight Matter? <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Raider1v1</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bryan Litz</div><div class="ubbcode-body">The G7 form...
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