Thread: 6.5x55 seating depth

Traditionally, OAL is/was; 3.150, and case trim-lenght;2.155". What make/model of rifle are you reloading for ? A good reloading manual should give you all the data you need, including a 'starting-point' for OAL. The various projectile manufacturers, usually have on-line data for recommended length for each of their projectile profiles also. As already mentioned above, 6.5x55, is often NOT fussy about a jump, before it contacts the rifling, compared with most other calibers. I've always followed the Europeans with my 6.5's, and start 2mm back from the lands, then adjusting it closer to fine-tune. Often,around 1mm, seems to be a sweet-spot, and chasing velocity, for hunting at least, is really unnecessary, anything between 2550-2700, in 140gr, will work fine, and 120's at the upper end are my go-to.