Thanks for posting that load data.

My first rifle reloads were made with shotgun powder at the age of about 14.
The procedure went like this, drill a hole in a 2x4 just a little smaller than the base of the cartridge to be reloaded.
Take a 16 penny nail and grind it down so it can be used to decap the primer.
Decap the primer.
Place cartridge on flat smooth wood surface and tap cartridge gently down onto new primer using another 2x4 as a mallet.
Add required amount of shotgun powder. I used rolled up paper as a funnel, I don’t remember for sure how I measured
the powder or which powder was used.
Press edge of case neck against hard surface and flatten a small area of the case neck, this will provide some neck
Tension when you push the bullet in.
Load cartridge carefully and not from the magazine.

I loaded 100 grain Hollow points in a 270 and used them for gophers and plinking. For a kid out in the country with very limited
Resources this was much fun.