Originally Posted by BBerg
N205 was replaced by Norma MRP.

It was a slow burning powder in the R22, H4831 range.



Alvaro is correct.

The OP should make sure all the powder has the same Lot number. N205 was known for varying form lot to lot, I think one of the reasons it was replaced by MRP.




The 280 Remington is overbore.

The 7 Rem Mag is over bore.