Thread: 6.5x47 Lapua not chambering

It is called case head expansion and excessive case head expansion is a sign of over-pressure.
I assume you are using the Lapua 6.5x47L small primer pocket cases and they handle excessive pressure better with regards to loose primer pockets.

I am not familiar with 2208 in the 6.5x47 so can't really comment on your loads other than to say the velocity doesn't look particularly high (well... depending on your barrel length).

I would expect that if you go to small base dies (more used in semi-autos) or go to excessive shoulder bump to attempt to resize the base of the case you will over work the rest of the case and without annealing you will likely reduce the life of your cases through work hardening and cracking.

As you suspected if you are not happy with 4 reloads per case (and I wouldn't be...) then I suggest you change your load.