Originally Posted by bsa1917hunter
Sounds great. I wished they would just make a new improved IMR 4350 that is an extreme powder like H4350... I guess I'll have to try to remember another # as well...


I think John just said that.....

Originally Posted by Mule Deer
Hodgdon just announced three new extruded IMR powders that are temperature resistant and contain a decoppering agent. The three powders (IMR 4166, 4451 and 7977) are roughly in the IMR4064, IMR4350 and Retumbo burn-rate ranges, and are made in Canada at the plant that makes other IMR powders.




165 GR. SIE SPBT


Starting Loads

Maximum Loads



Manufacturer

Powder

Bullet Diam.


C.O.L.


Grs.


Vel. (ft/s)


Pressure



Grs.


Vel. (ft/s)


Pressure




IMR

IMR 4451

.308"

3.300"



53.3

2,658

49,100 PSI



57.4

2,858

59,200 PSI