300 RumLoad (220berger & IMR8133)

[halpin40]

Gonna work up a load with 220 Berger and imr 8133. Anyone have any data or try this combo.

 

[Jr4]

Gonna work up a load with 220 Berger and imr 8133. Anyone have any data or try this combo.

 

[Jr4]

This is a start

 

[orelkaddict]

I'm assuming these are the 220 LRHT?? From Berger was 82.4-90.5 with a c.o.a.l of 3.728. That said I'm running 92 grains on 8133 with a 220 @ 3.728 in my RUM. As always work up slowly and good luck

 

[halpin40]

I'm assuming these are the 220 LRHT?? From Berger was 82.4-90.5 with a c.o.a.l of 3.728. That said I'm running 92 grains on 8133 with a 220 @ 3.728 in my RUM. As always work up slowly and good luck

Yes correct, I am switching from Retumbo and 208gr Amax to the 220 LRHT Berger’s. Can ask what velocities your getting?

 

[orelkaddict]

3098 average from a 26 inch 1:10 barrel. On multiple 5 shot groups through the chrono I've maintained under 2.8 SD with my setup.