Guys I have a Ar 15 300 AAC rifle with a 16" barrel, full length gas tube. I have been pouring cast bullets, but have not tried the 150 grain lead cast as of yet. My mold is the Lee 2 cavity 309-150. Have any of you had luck with a good load that will cycle well with this mold size? I have plenty of "Lil Gun" powder, and have great success cycling with a 150 grain fmj bullet using 15.5 gr. Do you think the load will come close to the same as the fmj bullet I've been loading? I know I'm venturing into different territory here with a lead cast bullet, and also I am Epoxy coating these bullets, and going to be trying them out without a gas check.
Thanks You Guys