Hammer bullets- Which ballistic Calculator?

Hunter-Angler · Feb 272022

I've been looking at Hammer bullets for my 264 WinMag. I've noticed that many hammer bullets only have a G7 BC listedno G1. I've looked at several ballistic calculators in the app storeand I can't seem to find one that works with G7 BC's. How do you guysthat use hammer bulletsbuild a ballistic table?

WildRose · Feb 272022

Dooner said:
I've been looking at Hammer bullets for my 264 WinMag. I've noticed that many hammer bullets only have a G7 BC listedno G1. I've looked at several ballistic calculators in the app storeand I can't seem to find one that works with G7 BC's. How do you guysthat use hammer bulletsbuild a ballistic table?

The Hornady Ballistic calculator will work with eitheryou just have to specify it.

Warrenoliver · Feb 272022

The vortex calculator allows you to use either also

Rusty85 · Feb 272022

Ballistic AE is a good one.

Hunter-Angler · Feb 282022

Thanks guys. I was using SBCand SBC light. I can't see anywhere where they allow for G7. I will look at these other ballistic programs and try to learn how to enter G7 values. Appreciate the help

adam32+P · Feb 282022

The Berger calculator lets you choose either one.

laker · Feb 282022

Come up with your own g1 ballistics coefficient for your load for the calculator you use. Odds are the hammer g7 isn't going to match your trajectory anyways when plugged in to a calculator

dmj · Feb 282022

Believe shooter allows you to choose.

Bravo 4 · Mar 12022

Old school way: Divide the G7 BC by .512 and it will give you a close enough G1 to start with. As laker statedtheir numbers might not be 100% what your rifle actually produces. Not a hit on Hammer at allbut only use a manufacturer's number as a start point. BC may not be the same rifle to rifle.
An example is the new'ish 390 grain Hornady ATipit's advertised as .987 G1 when my testing shows .96 G1. That <3% error might not sound like muchbut at really long ranges it can be. My last outing with that rifle it could have made a difference of aiming at the top of my head and hitting me in the ankles.

chav0_12 · Mar 12022

I've only used StrelokPro and AB from the Kestrel. Both have G7.

Zen Archery · Mar 12022

JBM Ballistics has a converter.
Don't invest too much time fiddling with BC

JBM - Calculations - Drag Function Conversion

www.jbmballistics.com

Hammer bullets- Which ballistic Calculator?

Hunter-Angler

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WildRose

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Warrenoliver

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Rusty85

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Hunter-Angler

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adam32+P

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laker

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dmj

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Bravo 4

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chav0_12

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Zen Archery

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JBM - Calculations - Drag Function Conversion

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