I know I saw a program before to calulate a cast bullet's BC from it's dimensions. I had my ballistic calculator all set up in my smart phone, but then that phone met an untimely end. I'm trying to get my 45-70 data set up in the new phone, but can't find the BC for a particular bullet, namely the Saeco 45 caliber 480 gr. bullet, the 645 Mold. Appreciate any help on finding the BC for that bullet.