I use 13gr. of Blue Dot with 400gr. lead bullets in my 45/70's. I hesitate to quote loads for others, but I've had no trouble at all after having used hundreds of rounds loaded this way. Hope this helps.Any starting loads that duplicate BP loadings w/ Red Dot or Blue Dot & the 405 Gr Bullet? I am using a 1873 Springfield and want to play abit w/ excess Red & Blue Dot powder... TIA![]()