Thanks for your quick reply Mickey:

The proof target I recieived with the rifle shows the rifle is regulated at 100 metres using a 16.7 gram, (approx. 256 grain?), RWS H. Mantel bullet.

For working up loads I have purchased the Nosler 250 grain accubond spitzer boatail, using new Norma brass.

I will also try using a speer 270 grain bullet to see how that works out.

I have a cronograph so I will be able to keep track of velocity.

Does Rolf also provide bases that would allow me to use the open sights as well as mount a scope?

Kindest regards,

CarpeDiem4570
Alberta, Canada