I will be trying them out soon in my Ruger RAP factory 10 twist barrel. Will be ordering a new barrel soon with a 1-8” twist to hopefully shoot them “better” than what I expect them to shoot with the 1-10” twist
I just rebarreled a rifle using a Green Mountain blank with a 1-9 twist cut at 24". Haven't done any serious load work yet but was able to get 3500 fps fairly easily with Varget and H380. Held about .8" groups but they show some promise