trajectory ballistic calculator ?

[65X55]

hi all I'm trying to find out and learn more about my bullets behaviour ,
6.5x55
nosler 100g bt
41g varget powder
sauer 202 outback
barrel 1 in 8 twist
3094 fps

if zeroed at 100 yards

200 yards ?
300 yrds ?
400 yards ?
I'm trying to get an accurate idea of drop over various ranges any help greatly appreciated

don't get me wrong it works and has done for years but I'm getting old and thinking more about these things and don't know the answers ,
old school not broke don't need fixing type of bloke

thanks

 

[stubear]

What scope are you using? I can run an approximation in the swarovski app I have (or if you have a smart phone you can download it and enter the data directly).

 

[65X55]

schmidt 2.5-10 x56 zenith

cheers

 

[65X55]

this is what a friend did for me its all over my head though

 

[AN DU RU FOX]

this is all i can find at the minute ,but i cant find 100gr nosler, http://eliminatorlaserscope.ru/public/pdf/eliminator-3/cartridge_list.pdf

 

[Biathlonjimmy]

You can guess via ballistics app/program but the only way to know is by shooting at those distances and recording the results. 0-300yrds the app should be fairly close.

 

[65X55]

Cheers lads

 

[Southern]

Hawke scopes has a program for their scopes, which you can download. Very useful for .22 LR and .22 WMR.

Remington web site has a calculator for their ammo, which lets you select up to 4 different ones and compare them.

JBM is a really good one, online and free. Great for handloading, like the question of the OP.
They have paid versions with more functions, for your smart phone, too.
JBM - Calculations

www.jbmballistics.com/ballistics/calculators/calculators.shtml

You can guess via ballistics app/program but the only way to know is by shooting at those distances and recording the results. 0-300yrds the app should be fairly close.

Very true, but you can use a tool like JBM to input the actual MV and drops at 50, 100, 200, 300 yards to then calculate the average BCs for your load. Using that BC, you can tune in on the scope setting you want use for hunting, and get a closer approximation for 400 to 1,000 yards, before shooting out to there - saves some ammunition. In the real world, we don't need .5 and .25 MOA rifles for hunting at 200 and 300 yards, but we do for 600 to 1,000 yards. That most accurate load may be at an MV nowhere near the fastest load, so you have to calculate the actual trajectories for its actual BC, then go shoot to find out how close this is to reality.

 

[Gunner223]

Download the Strelok app to your phone, that should help.

 

[Alantoo]

First time I have used this programme. Check the figures I have put in...I guessed your scope height (LOS) above the bore air 1.9" for a 56mm objective.

Alan





ps As others have said it is only a guide...a target at 400 metres is the real deal.

There are loads of ballistic calculators for smart phones...I have three or four on my phone...Lapua Ballistics, Ballistics AE, Sako Ballistics, Winchester Ballistics, Norma Ballistics, Nosla Ballistics, Bullet drop...sorry 7!

 

[65X55]

 

[25 Sharps]

First time I have used this programme. Check the figures I have put in...I guessed your scope height (LOS) above the bore air 1.9" for a 56mm objective.

Alan



View attachment 78965

ps As others have said it is only a guide...a target at 400 metres is the real deal.

There are loads of ballistic calculators for smart phones...I have three or four on my phone...Lapua Ballistics, Ballistics AE, Sako Ballistics, Winchester Ballistics, Norma Ballistics, Nosla Ballistics, Bullet drop...sorry 7!

This is the app I use and usually pretty good

 

[Hornady]

This is the app I use and usually pretty good

way app is that

 

[Alantoo]

way app is that

The app that I showed the screen grab from is Ballistics AE

They all seem to be much of a muchness. Ballistics AE calculates a few more parameters and has a huge data base of bullets to choose from...

Most of the apps allow you to input your own mv and bullet weight and bc combination.

Alan

 

[Hornady]

The app that I showed the screen grab from is Ballistics AE

They all seem to be much of a muchness. Ballistics AE calculates a few more parameters and has a huge data base of bullets to choose from...

Most of the apps allow you to input your own mv and bullet weight and bc combination.

Alan

I used to use this but the damn thing not on android. It was great for drop

 

[ChesterP]

Zero at 100, measure distance to centre of group shot at 200 and 300 yds from aim point centre. Use a chrony to determine MV. Use Strelock Pro or similar and enter the G7 BC figure for your bullet and the measured MV. Compare with actual results and either adjust MV or BC in the calculator until it matches actual drop. Use that data to extrapolate to longer distances. It works. Avoid using G1 BCs as they're not accurate for modern bullets much past 200 or 300 yds.

 

[Greener Jim]

View attachment 79116View attachment 79117View attachment 79118

 

[Alantoo]

View attachment 79116View attachment 79117View attachment 79118

Not that it makes much difference, but can you get a 56mm objective scope to 1.5" above the bore?

Alan

 

[Southern]

Scope height above the bore makes very little difference in trajectory in relation to the sights. You can verify it by comparing the same load with iron sights and 56mm Hubbel scopes. Scope height does make a difference in fitting one's face to the stock and eye alignment. Lower is not always better.

 

[Hornady]

Scope height above the bore makes very little difference in trajectory in relation to the sights. You can verify it by comparing the same load with iron sights and 56mm Hubbel scopes. Scope height does make a difference in fitting one's face to the stock and eye alignment. Lower is not always better.

It makes a difference with nv if you zero at 50 yards and forget to change the app. I shot 5 inch over a fox once because of that lol