Actually the information supplied even with the rifles by mauser was incorrect. I have yet tos hear of one using the twin coil springs in the magazine. All I have seen and heard of use the std mauser zig-zag spring. As for calibres well this was my one in 6.5x55:-

I acquired the rifle new and found it good for shooting the Running deer at Bisley. It prefered the Speer 140 grain bullet to the Speer 120. Neither shot poorly just grouping was a bit tighter with the 140's. As for weight they are not heavy at all and make a nice stalking rifle although the action confuses guides and Ghilles some what.

Mounts are Hilvers and the scope a 3-9x42 Lisenfeld Spezial.

I sold it to a friend the other year to make room for another BSA. I believe there is a gunshop in South London that still has two new ones on the shelf. a .243 and .308.