Page 1 of 1 1
Topic Options
Rate This Topic
#207581 - 08/01/20 09:39 AM confirming drop at longer ranges
dave thomas
enthusiast


Registered: 11/19/08
Posts: 310

Offline
how many guys see a considerable difference between the ballistic programs projected bullet drops and true confirmed bullet drop?
I zeroed my 7-08 striker at 200 yards and the true bullet drop with 140 grain berger vld was 6.5 inches. that is a full two inches less than strelok had calculated. Don't get me wrong, I'm glad it is flatter than what was calculated. this doesnt seem like a big deal at 300 but running that out to 500 makes a considerable difference and if shooting smaller targets like varmints and would probably cause misses.
I am just assuming that the vld bullet is causing this flatter trajectory even though the specs of the bullet was listed on their charts.
FYI, i have been shooting long range with rifles for years and have never ran a ballistics calculator. Old school i guess. but with technology, jumping into the 21st century with the phone programs was pretty easy. Even a caveman can do it!

Top
#207583 - 08/01/20 09:54 AM Re: confirming drop at longer ranges [Re: dave thomas]
Teep
member


Registered: 09/19/15
Posts: 111
Loc: MO

Offline
I think they just give us a good starting point as each gun will shoot differently. The thing I really like about them is it gives me a good starting point to figure out the best range to start with my zero range setting. One thing that has always concerned me about them is the ballistic coefficient changes as the bullet slows down and I don't see how the calculators can compensate for this.

Top
#207586 - 08/01/20 03:04 PM Re: confirming drop at longer ranges [Re: Teep]
Chance Weldon Administrator
Distinguished Expert


Registered: 09/20/13
Posts: 4464
Loc: Martin, Tennessee

content Online
Does the program take into account atmospheric conditions and wind?
_________________________
Formerly TN Lone Wolf

"We are only as strong as we are united, as weak as we are divided." - J.K. Rowling

Top
#207599 - 08/02/20 11:48 AM Re: confirming drop at longer ranges [Re: Chance Weldon]
Zee
Gun Slinger


Registered: 03/23/14
Posts: 2908

content Online
You have to ?true? the ballistics program.

In StrelokPro, you input the data (cartridge/rifle) and it will give you an estimate. You then have to shoot at certain distances and adjust your data in the program for it to start putting out reliable data.
For instance, I use StrelokPro. After I build a gun in the program, I shoot it at 400/800/1,200 yards and correct or adjust the program. After that, it?s pretty darn spot on or within 1/10 or 2/10 Mil on every distance out to subsonic.

Do you know how to true the program? There is an icon you select that takes you to the page where you adjust your actual hold from the recommended one. Once you do that, and save the data, the program reworks the ballistics algorithm to give you better data.

I use StrelokPro and Applied Ballistics programs. They are pretty good tools.
_________________________
"To Hell with efficiency, it's performance we want!" - Elmer Keith

Top
#207600 - 08/02/20 11:52 AM Re: confirming drop at longer ranges [Re: Zee]
Zee
Gun Slinger


Registered: 03/23/14
Posts: 2908

content Online
On my phone, it?s the bottom right icon with the yellow line arching towards a Bullsi on the right with a blue arrow pointing g up and down. Once you select it it takes you to a page that?s titled ?Trajectory Validation (Truing)?.

Adjust your actual hold and it will recalculate your velocity To give you the proper dope. Hit ?use these values? and save. Easy peasy.
_________________________
"To Hell with efficiency, it's performance we want!" - Elmer Keith

Top
#207625 - 08/04/20 07:33 PM Re: confirming drop at longer ranges [Re: Zee]
dave thomas
enthusiast


Registered: 11/19/08
Posts: 310

Offline
Thanks Zee. I had not done that with any of the rifles or pistols that i have loaded in the strelok pro. after loading in the info for my 6.5 creedmoor rifle i found it spot on at 1000 and within 1/4 minute out to 1450 yards so i didnt think that i would have to adjust anything as that was the only gun i had real info loaded into the program.

Top
#207629 - 08/04/20 11:31 PM Re: confirming drop at longer ranges [Re: dave thomas]
Zee
Gun Slinger


Registered: 03/23/14
Posts: 2908

content Online
Skynet hasn?t taken over the whole world yet, we still need to feed it info to give us the data we want. 😁
_________________________
"To Hell with efficiency, it's performance we want!" - Elmer Keith

Top
#207630 - Yesterday at 12:03 AM Re: confirming drop at longer ranges [Re: Zee]
Zee
Gun Slinger


Registered: 03/23/14
Posts: 2908

content Online
Don?t forget to upload your current weather every time you shoot as well. Your density altitude will change depending on the current conditions.
_________________________
"To Hell with efficiency, it's performance we want!" - Elmer Keith

Top
#207637 - Yesterday at 11:11 PM Re: confirming drop at longer ranges [Re: Zee]
dave thomas
enthusiast


Registered: 11/19/08
Posts: 310

Offline
thank you sir!

Top
#207640 - Today at 07:33 AM Re: confirming drop at longer ranges [Re: dave thomas]
Teep
member


Registered: 09/19/15
Posts: 111
Loc: MO

Offline
Also don't forget the effect of the temperature on your powder.

Top
Page 1 of 1 1


Moderator:  Chance Weldon, Gregg Richter, Gary 
Hop to:
 Portal Sidebar
Who's Online
3 registered (nannyhammer, magman, Zee) and 78 anonymous users online.
Top Posters
9836
Whitworth
9608
s4s4u
9543
jamesfromjersey
7645
wapitirod
7327
TCTex.
6816
KRal
5287
Ernie
5057
Gary
4704
Tigger
4655
Franchise
4464
Chance Weldon
4461
pab1
4370
Dan B.
4132
Gregg Richter
3755
johnwilliams
  Member Hunts
Bring Your Hunting
Bring Your Hunting Equipment in Good Shape before the Big Day

The other handgun
The other handgun hunting books

   Access Requires Login

Generated in 0.04 seconds in which 0.008 seconds were spent on a total of 14 queries. Zlib compression enabled.




Copyright © 2000-2008
HandgunHunt.com, Inc.