The bullets I was using were Woodleigh 300 gr RNSP. Driven at a moderate velocity of around 2450 fps.

I believe the RNSP are a bit softer or expand more than the protected points. I haven't tried these in 300 gr yet and aim to give them a try next.

The RNSP's also gave me some feeding problems except if they were nicely rammed home. This is common with Mausers sometimes. I guess the action may need some fine tuning too.