In the video I am shooting 535 grn Woodleigh SN at 2411 fps.

The load is:

535 grn Woodleigh SN
118 grn of Vithavouri N140
Brass is Horneber
Primer is Federal 215

The Cup points in the picture above is my owm design.

They are pure copper and weigh in at 550 grn same load data as above.
I did not get a chance to chrono these loads.

This is what the target looked like after 35 shots with the .500 Jeffery and about 20 with the Mauser 10,75x68.
Oh yeah and a video of the Mauser 10,75x68.

PS these Videos go FULL size - pres full size.

Lapua PM on its way.

Cheers,

André