General Categories > Shooting Sports
Its On: The Second Amendment Preservation Precision Rifle Challenge
bkoenig:
I found what seems so far to be a pretty decent ballistic calculator for the iphone. It's called "Ballistic", strangely enough...
It looks like it has the features Wallace mentioned, but it also has a neat ranging feature. You just punch in the target size and scroll the wheel until the target matches what you see through the reticle, and it does the calculation for you.
JTH:
Well, other people should sign up for this, because it is certainly true that they won't come in last.
I'm pretty sure I will.
Made it to the range and took out my .308 (that I haven't shot in 8 years---literally) and tried to remember how a bolt-action gun worked.
Yeah, that went well. [sigh]
I know---I'll just buy a whole lot of stuff and bolt it to the gun! You can make up for poor shooting by using expensive equipment, right?
Right?
abbafandr:
--- Quote from: jthhapkido on May 12, 2013, 06:58:12 PM ---Well, other people should sign up for this, because it is certainly true that they won't come in last.
I'm pretty sure I will.
--- End quote ---
--- Quote from: jthhapkido on May 12, 2013, 06:58:12 PM ---Well, other people should sign up for this, because it is certainly true that they won't come in last.
I'm pretty sure I will.
Made it to the range and took out my .308 (that I haven't shot in 8 years---literally) and tried to remember how a bolt-action gun worked.
Yeah, that went well. [sigh]
I know---I'll just buy a whole lot of stuff and bolt it to the gun! You can make up for poor shooting by using expensive equipment, right?
Right?
--- End quote ---
Too bad the pistol shoot won't count for score, you could definitely help your score there ;D
Don't own a bolt action anything any more. And its been years since I even handled one handled one.
JTH:
--- Quote from: abbafandr on May 12, 2013, 07:49:55 PM ---
Too bad the pistol shoot won't count for score, you could definitely help your score there ;D
Don't own a bolt action anything any more. And its been years since I even handled one handled one.
--- End quote ---
I thought about using one of my ARs, but they are all in .223 and I decided that 900 yards-worth of wind on a .223 round will change my chances from "almost close to zero" to "ridiculously close to zero," so a bolt-action .308 it is...
(If I had a LaRue OBR, we'd be having a different conversation.... :) )
(sigh) It would indeed be nice if Jon added some of the pistol stuff to the score....
[hint, hint!]
kozball:
Been trying to get a grasp on this Density Altitude thing.
A friend at work just got his pilot license. He flies small Cesna type airplanes out of North Omaha. As a pilot, he has firsthand knowledge of DA. He told me that as of this AM at 11:00, the DA at Blair airport was just short of 4000'. This is from a set altitude of close to 1300'.
Now I took this info and went to Federal Ballistics website and entered for 175 SMK 308cal. 1st entry at 1300' and temp of 70. 2nd entry at 3500 ' and temp of 70. Both with 200yd zero.
The trajectory diff was only 1.3" at 500yds, 2.8" at 600yds, 4.9" at 700yds, up to 19.3" at 1000 yds.
I found this incredible, as I had no idea that around here (Omaha area) that we could have such a huge swing in altitude which affects ballistics by a huge amount when trying to engage a 24" target.
Just an FYI and hope I am correct. :-\
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