Hello, I have recently started casting some of my own bullets as a natural outgrowth of reloading. (OK I'm late to the dance 'cause it's getting hard to get free or even cheap wheel wts) Any way... I have cast and am ready to load some 150gr, .309, gas checked, 30-30s. I have RCBS Cast Bullet Manual #1 and they list 10-12 gr of Unique or 27-29 gr IMR 4895. I would like some of you more experienced reloaders to advise. I have either powder and may end up trying both I just want to see if anyone has already evaluated these. This is for a Winchester '94 made in mid 70s. I really would like to get this set up and ready for deer season this year.