hi, i am having megga trouble getting cases to fit my sako 75 varmint 6ppc usa. i am resizing lapua 220 russian cases with a 0.265" neck sizing bush but the cases will not fit into my bullet seating die due to the neck size being too large. i find that if i try an unsized case it seats well into the die but when i use a resized case i find it will not fit properly into the die.
if i force the case into the seating die i only go 2-3mm and this measures 0.261" while the rest of the neck measures 0.271". first - is my throat size going to be 0.261" and second - do i need to reduce the necks on the cases. third - do i need to slug the chamber to find the correct size.
any help will be greatly appreciated.
if i force the case into the seating die i only go 2-3mm and this measures 0.261" while the rest of the neck measures 0.271". first - is my throat size going to be 0.261" and second - do i need to reduce the necks on the cases. third - do i need to slug the chamber to find the correct size.
any help will be greatly appreciated.