6.5 CM from 308

[yobuck]

You'll need a shorter shellholder. When I was playing around making 250 Imps from 243 brass I needed to use a .120" shellholder. I tweaked the FL die down a little at time until I got the amount of shoulder bump I needed.

You could also try putting a shim, maybe .002"-.003" between the floor of the holder and the casehead to allow the brass to enter the die a little further.

Bill

Wouldnt a set of the competetion shell holders work Bill? Just keep trying a different one till the bolt closes?