6.5 Guys Excel Statistical Load Development

I'm learning precision rifle shooting techniques; shooting form & load development.

OCW vs Statistics

I watched 6.5 guys YouTube video describing their Excel Stats tool that can predict a good load from Chrono data alone. The prediction is based on the load that demonstrates velocity flat spot & low ES/SD

I shot 50 rds, 5 shots with 10 powder loads varying by 0.2gr using a Magnetospeed to generate velocity data. I also evaluated each target to calculate MOA.

Surprise! 6.5 guys statistical prediction matched my lowest MOA Target.

I'm a believer in their method.

Ruger American Predator, .223, FC cases, CCI primers, H335, Hornady 62gr BTHP, 2.25 COAL

Sorry for the delay!

I've been a pistol shooter & pistol reloader for 20 yrs But;

I recently bought a Ruger American Predator in 223 and am practicing shooting and reloading rifle at the same time.

http://www.65guys.com/

Have both a great YouTube channel and web page. Steve's software is available for download

Their software predicts long range accuracy based on low ES.

Long story short:

62gr Hornady 2276C with 23.6gr H335 was predicted by the software to be a good load and it is.

I was toying with seating depth with 0.010" from lands producing 0.95 MOA (avetage of 5 groups in the attachment)

I ordered 500 new bullets, Hornady 68gr BTHP Match and I have 100 SMK 69gr

I hope that the combination of: Improved loading skills, better bullets and rifle practice yields better groups.

The groups were analyzed using OnTarget software

Here's the 6.5 Guys YouTube:

"Clunky" Yes!

Macro Enabled Excel won't run on my phone, tablet or Google Sheets

I'll take your implied suggestion to create a sheet compatible with my portable devices.