Another consideration assuming you can get some, is to try the Vihtavouri powders that are in the same burn range as the IMRs 4064 and 4895. The N100 series are extremely clean burning and very consistent.

N135 is nearly identical in burn rate as IMR 4895 (slightly slower) and is slightly faster than IMR 4320. N135 falls in-between those two.

N135 might just be ticket for you to burn cleaner in that rifle.



28 Nosler,,,,300WSM,,,,338-378 Wby,,,,375 Ruger