I'm getting internal server errors-500 at JBM Ballistics.
Anyone know what is going on or when it will be back up?
Anyone know what is going on or when it will be back up?
Range Report JBM Ballistics, servers are down?
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Re: JBM Ballistics, servers are down?
I had the same problem. Out in the field i forgot my ipod which had Ballistic FTE on it. And figured ok i'll just pull up jbm on my samsung. Well no can do, luckily the deer where just shy over 100yds. This was with my MK12 MOD 1 which i've never taken beyond 100.
I get this error on some of my PC forums every now and then it will be back up eventually.
I had the same problem. Out in the field i forgot my ipod which had Ballistic FTE on it. And figured ok i'll just pull up jbm on my samsung. Well no can do, luckily the deer where just shy over 100yds. This was with my MK12 MOD 1 which i've never taken beyond 100.
I get this error on some of my PC forums every now and then it will be back up eventually.
Re: JBM Ballistics, servers are down?
Yes, they are down. Looks like my ISP is having problems. They are working on it but don't have a time of repair.
Yes, they are down. Looks like my ISP is having problems. They are working on it but don't have a time of repair.
Re: JBM Ballistics, servers are down?
Shouldn't be too long. It's never more than a day when i've experienced it.
Shouldn't be too long. It's never more than a day when i've experienced it.
Re: JBM Ballistics, servers are down?
Paper and pen don't have server and ISP problems, battery malfunctions, or sensitive screens. Just sayin'.
On the other hand I love to play on JBM trying different variables to see their effects. Learned a lot about what factors I should worry about, and what factors don't mean squat at the ranges I shoot.
Branden
Paper and pen don't have server and ISP problems, battery malfunctions, or sensitive screens. Just sayin'.
On the other hand I love to play on JBM trying different variables to see their effects. Learned a lot about what factors I should worry about, and what factors don't mean squat at the ranges I shoot.
Branden
Re: JBM Ballistics, servers are down?
Lol i don't know the physics/calculations involved in developing data for bullet drop. So a paper and pen would be useless in my current situation. If your talking recorded data then yeah that would've been helpful.
Lol i don't know the physics/calculations involved in developing data for bullet drop. So a paper and pen would be useless in my current situation. If your talking recorded data then yeah that would've been helpful.
Re: JBM Ballistics, servers are down?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Short-bus</div><div class="ubbcode-body">Paper and pen don't have server and ISP problems, battery malfunctions, or sensitive screens. Just sayin'.</div></div> That's why I snail mail all my posts to Lowlight so he can type them in and enter them for me.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Short-bus</div><div class="ubbcode-body">Paper and pen don't have server and ISP problems, battery malfunctions, or sensitive screens. Just sayin'.</div></div> That's why I snail mail all my posts to Lowlight so he can type them in and enter them for me.
Re: JBM Ballistics, servers are down?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Blackops_2</div><div class="ubbcode-body">Lol i don't know the physics/calculations involved in developing data for bullet drop. So a paper and pen would be useless in my current situation. If your talking recorded data then yeah that would've been helpful. </div></div>
Does anyone know a good place to learn those calculations? I'm just getting into long range shooting and would like to learn to do it the old school way.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Blackops_2</div><div class="ubbcode-body">Lol i don't know the physics/calculations involved in developing data for bullet drop. So a paper and pen would be useless in my current situation. If your talking recorded data then yeah that would've been helpful. </div></div>
Does anyone know a good place to learn those calculations? I'm just getting into long range shooting and would like to learn to do it the old school way.
Re: JBM Ballistics, servers are down?
I'm sure if you created a thread about it there are definitely some knowledgeable people on here and vets that certainly know they're stuff. They'd be more than willing to help.
I'm sure if you created a thread about it there are definitely some knowledgeable people on here and vets that certainly know they're stuff. They'd be more than willing to help.
Re: JBM Ballistics, servers are down?
There are some simpler methods that you could do with paper and pen (still take a long time) that you can find in McCoy's book, Modern Exterior Ballistics.
The way my site does it -- numerical integration -- would take days or weeks to do by pen and paper.
There are some simpler methods that you could do with paper and pen (still take a long time) that you can find in McCoy's book, Modern Exterior Ballistics.
The way my site does it -- numerical integration -- would take days or weeks to do by pen and paper.
Re: JBM Ballistics, servers are down?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: EvilWoodchuck</div><div class="ubbcode-body">Does anyone know a good place to learn those calculations? I'm just getting into long range shooting and would like to learn to do it the old school way.</div></div>
For a computer-free approach - check MilDot Master and FDAC devices (basically ballistic slide-rules). They're very good (heck, I bought them - and I swear by electronics
).
Or go to JBM Web site, print a few Data Cards for those conditions and ammo you plan to use, laminate them and carry with you.
For the actual <span style="text-decoration: underline">learning</span> - you better be good with differential equations.
Dr. Pejsa (Google for his two publications: <span style="font-style: italic">Pejsa's Handbook on New, Precision Ballistics</span> and <span style="font-style: italic">The Exact Ballistics for Riflemen</span>) simplified the equations down to algebraic level, but they may be problematic outside of supersonic region.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JBM</div><div class="ubbcode-body">There are some simpler methods that you could do with paper and pen (still take a long time) that you can find in McCoy's book, Modern Exterior Ballistics.
The way my site does it -- numerical integration -- would take days or weeks to do by pen and paper.</div></div>
I've nothing to add to JBM's pointer, except that I don't think we did numerical integration by hand (paper and pencil) even in school. I don't think paper and pencil approach is usable.
You may want to look up GEBC (Gnu Extended Ballistic Calculator) - it comes with the source code. I fixed it for Mac OS X Snow Leopard, and toyed with the idea of enhancing it - but with Bullet Flight, FTE and Shooter available on iPhone it just doesn't make sense to invest time into something that $10 (or $20 or $30) would secure you the best quality.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: EvilWoodchuck</div><div class="ubbcode-body">Does anyone know a good place to learn those calculations? I'm just getting into long range shooting and would like to learn to do it the old school way.</div></div>
For a computer-free approach - check MilDot Master and FDAC devices (basically ballistic slide-rules). They're very good (heck, I bought them - and I swear by electronics
Or go to JBM Web site, print a few Data Cards for those conditions and ammo you plan to use, laminate them and carry with you.
For the actual <span style="text-decoration: underline">learning</span> - you better be good with differential equations.
Dr. Pejsa (Google for his two publications: <span style="font-style: italic">Pejsa's Handbook on New, Precision Ballistics</span> and <span style="font-style: italic">The Exact Ballistics for Riflemen</span>) simplified the equations down to algebraic level, but they may be problematic outside of supersonic region.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JBM</div><div class="ubbcode-body">There are some simpler methods that you could do with paper and pen (still take a long time) that you can find in McCoy's book, Modern Exterior Ballistics.
The way my site does it -- numerical integration -- would take days or weeks to do by pen and paper.</div></div>
I've nothing to add to JBM's pointer, except that I don't think we did numerical integration by hand (paper and pencil) even in school. I don't think paper and pencil approach is usable.
You may want to look up GEBC (Gnu Extended Ballistic Calculator) - it comes with the source code. I fixed it for Mac OS X Snow Leopard, and toyed with the idea of enhancing it - but with Bullet Flight, FTE and Shooter available on iPhone it just doesn't make sense to invest time into something that $10 (or $20 or $30) would secure you the best quality.
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