Thread: Lapua 308 brass resizing to 260

Originally Posted by grandpamac

Sorry but this is not true. To my knowledge all of the .308 family of cartridges have a length to shoulder of 1.56" (39.62mm). The length to the base of the neck differs due to changes in diameter. A new 7mm-08 case will chamber in a .308 chamber etc.
GPM

I thought it was the other way round, i.e. lengths were different to prevent chambering larger calibres in small chambers. I much rather fire a 243 round in a 308 rifle than vice-versa!