Testing 7mm 195 gr berger

[HunterGreen]

Managed to load and try out 195gr Berger. Out of my 7mm mag custom. 30" 1000BR Taper barrel 1-8 twist.
Loaded as follows.

New norma brass, federal GM 215 match primer, trimmed case 2.493, seated bullets all the same ogive 2.835 5k off the lands.

Retumbo 68gr 5 shots av speed 2887 mv 10 fps.
Retumbo 68.4gr 5 shots av speed 2895 mv 9 fps. It really liked this load. Measure @100yards .495

Retumbo 69gr av speed 2930 mv 15 fps.

All two groups were within an inch, except 68.4 gr.

When time slows down I would test out to 350yd

 

[coyotezapper]

You have a flat spot / node in your powder charge between 68 and 68.4. I would load 68.2 grains adjust seating depth and run with it.

 

[HunterGreen]

You have a flat spot / node in your powder charge between 68 and 68.4. I would load 68.2 grains adjust seating depth and run with it.

Yup I definitely have to play with seating depth, if I can get them to shoot like 168gr Sierra mk, I 'll be very happy. I will load them up again starting 69.5 gr till I hit Max spot