Supreme 780

[Qc_BearHunter]

Is it recommended to use magnum primers with this powder?

 

[todbartell]

probably not a bad idea, it's slow in burn rate

 

[saskcop]

It is a spherical powder isn't it (I am asking as I am not sure)? If so, they usually spark up better with magnum primers.

 

[Qc_BearHunter]

Yes it's a spherical....