Power Pro 4000-MR Powder

FEENIX

Well-Known Member
LRH Team Member
Joined
Dec 20, 2008
Messages
16,409
Location
Great Falls, MT
I’d say it’s similar to H4831. Maybe a tad slower on the burn rate side of thingS.
(117) Alliant Power Pro 4000MR is quite a bit faster than (137) H4831.

2019 Hodgdon relative burn rate chart.jpg
 

can1010

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Joined
Feb 27, 2012
Messages
1,164
4000 MR is not on many charts and I don't put much stock in their accuracy. I am going from personal experience and the limited reloading data on Alliants web site
 

can1010

Well-Known Member
Joined
Feb 27, 2012
Messages
1,164
I am using 4000mr in a 243 win,6.5 prc, and 7saum all with heaver bullet weights and I also use rl-16 in all three of them but only with lighter weights. between grains of powder, case fill, and velocities obtained made it clear that it is farther down the chart than listed. I also use rl-19 in my 7 saum and that is how I came to my conclusions
 

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