Given a small pistol primer, see page 35 of https://saami.org/wp-content/uploads/2019/02/ANSI-SAAMI-Z299.3-CFP-and-R-Approved-2015-12-14-Posting-Copy.pdf, how much energy would be needed to ignite it?
Have looked on the internet and couldn't find it.
I know that some primers may need more...
Tested recent available Argentina SP Primers. IMO they are as good as others if not better.
Caliber: 357Mag 18.5" Carbine Rifle
Brass: Starline new sized and trimmed to length
Bullet: Nosler HP 158 grain
Power: Ramshot True Blue @ suggested starting weight of 8.5 grains...