Labrabaco v.0.5 beta is out

Labrabaco is a tool to calculate G7 BC values from Labradar tracks. Rejoice, citizens! The first official beta is out.

Here: https://bc.geladen.ch/labrabaco/labrabaco.html

Typical results look like this (different measurement sessions for the same projectile are listed separately):

Bullet	ref BC	BC src	valid tracks	baco BC	diff, %
GP90 (Fass90)	0.166	CH armee [*]	15	0.167	0.7%
GP11	0.274	CH armee [*]	16	0.270	-1.4%
RUAG BALL 8.6	0.312	vendor [*]	7	0.316	1.1%
Lapua Scenar-L 7.62 155gr	0.230	vendor	16	0.230	0.1%
GP90 (SG-553-LB)	0.166	CH armee	14	0.166	-0.1%
Hornady ELDM 6.5 147gr	0.351	vendor	16	0.332	-5.4%
Berger EOL 6.5 156gr	0.347	vendor	4	0.352	1.3%
Hornady ELDM 5.56 73gr	0.200	vendor	5	0.206	3.0%
Hornady ELDM 6.5 147gr	0.351	vendor	5	0.337	-4.1%
Hornady ELDX 6.5 143gr	0.315	vendor	4	0.312	-1.0%
Hornady ELDX 7 175gr	0.347	vendor	19	0.353	1.6%
SMK 223 69gr	0.169	Litz [**]	10	0.167	-1.1%
Hornady ELDX 6.5 143gr	0.315	vendor	7	0.315	-0.1%
Hornady ELDX 7 175gr	0.347	vendor	22	0.351	1.2%

“Ref BC” is a known good G7 BC from “BC src”. “Baco BC” lists the values calculated by labrabaco from radar tracks.

For all but one bullet, it looks perfectly ok for most practical applications (<2%).

Wish I had an adult-size Doppler radar to check if Hornady ELDM 6.5 147gr really behaves so differently from all other bullets tested.