Long-range shooting academy
Fifteen articles on what a ballistic solver is actually doing, and which of its inputs decide whether you hit. No sales pitch, no gatekeeping — read them in the truck before you shoot.
A solver turns numbers into a hold. Feed it a catalogue muzzle velocity and a guessed scope height and it will answer with the same confidence as if you had measured both — which is exactly how people end up trusting a wrong number to three decimal places. These articles cover what each input does to the trajectory, so you know which ones deserve a chronograph and which ones you can estimate.
Fundamentals
Ballistic coefficient
Sectional density over form factor — what the number measures, how much of it is marketing, and where it stops mattering.
Read → 7 min readG1 vs G7
Two reference projectiles, two coefficients, one common mistake. Which model fits your bullet and what happens when you mix them.
Read → 7 min readMOA vs MIL
What each unit is worth at distance, how clicks fit in, and why mismatched reticle and turrets cause more misses than the unit choice ever will.
Read → 8 min readZeroing
The anchor point for every correction. Distance, round count, and why a sloppy zero poisons a whole DOPE card.
Read → 6 min readScope height
Thirty seconds with a caliper, wrong in most profiles. Where the error shows up and where it hides.
Read → 8 min readMuzzle velocity and SD
Why the box number is not yours, what SD really tells you, and how velocity spread becomes vertical spread at distance.
Read →Conditions
Reading wind
The one input you must estimate. Clock positions, crosswind components, mirage, and wind that changes down the range.
Read → 7 min readDensity altitude
Air density is the only thing drag responds to. How three weather inputs collapse into one number, and how much it moves your drop.
Read → 6 min readPowder temperature
Same box, different velocity. How to measure your load's sensitivity and why ammunition left on a hot bonnet is a different load.
Read → 6 min readAngled shots
Up or down, you shoot high. Why gravity only sees the horizontal distance, and where the classic rule stops working.
Read → 7 min readTransonic zone
Where drag changes shape and stability is tested. Finding your own transonic distance and planning around it.
Read →The fine corrections
Spin drift
A sideways push with no wind behind it. Which way it goes, what drives it, and when it outgrows your wind error.
Read → 6 min readCoriolis effect
Real, computable, and usually smaller than your wind error. Which component depends on latitude, which on azimuth.
Read → 5 min readRifle cant
Zero at your zero, large where you dial. Why a level matters more than most accessories and how to fit one honestly.
Read → 8 min readTruing
Adjusting the inputs against real impacts — which one to change, in what order, and at which distances.
Read →Put it in your range bag
Ballistic Calculator is free, works offline and runs the same point-mass solver on every screen you have just read about.