Thread: Trying something, Eric Cortina method of load development

Update....so i took the 2 loads i thought would be the goods to the range loaded 10x for each load which gave me 5 for a group validation and 5 for krono data.
It didn't go well both loads had opened up shooting 1.8" and 1.5" groups and then even worse with the magnetospeed hanging off the muzzle.





Not ideal and a little frustrating
The es and sd were still really stable so I revisited the seating depth that shot the very best group 2.638" loaded up 6 rounds 3 for group validation and 3 for krono data

Both shot extremely well again, even with the krono fitted, both 3 shot groups were under .4" I did note a slight poi shoft with the krono fitted but still a great 3 shot group.
So this load has now shot 3 sub .4" groups including the seating depth ladder. I'm gonna call that confirmed good.
The velocity was a little lower but no slouch at 2928fps avg with an sd of 9fps and an es of 18fps

Magnetospeed attached slight poi shift right


No magnetospeed


Original seating depth ladder group.



......time to load some ammo