Very nice documentation Steve!
Just out of curiosity, but I notice how on-target the groups are. You didn't have any major POI change through that range of charge weights? I haven't ladder tested my .223 yet.
To date, I haven't messed around with the LFCD in any caliber.
I have picked a couple calibers up when they've been on sale but I honestly have never threaded them into a press yet.
I'll have to put forth a little more effort to give em a try some time.
I do use a crimp on any cannelured bullet for my rifle loads, but just what I get from the particular brand seating die that I'm using.