That sux, my friend . I dont guess there is such a thing as the perfect bullet that works for every caliber in every rifle . Lot of work and expense to do all that testing though. Just not enough bearing surface for your tube, i guess ?I tried four different powders & every seating depth. Nothing worked for me. I got an honest 100fps gain in velocity, without the accuracy. As I stated very frustrating considering the fantastic accuracy I got with the Hammers.