.338 rum, help me narrow down the powders.

[Booney]

No moly. I'm not sure i have a thread right now asking that same question i hope not very.

[GNERGY]

I like the 225 Barnes TTSX, here are some of my results.
Groups at 300 yds.

Best group at 500 yds so far.

Tarey

[orangeride]

Nice groups! I'm Gona have to try 4831. I'll be trying accurabond. How far off the lands would you start your testing?

[GNERGY]

The Barnes recommended .050 off the lands and that is where I loaded them. The Noslers I would start with .010 off the lands and see how it shoots. I shot 3 boxes of nosler 250's and couldn't get them to group in my rifle with 4 different kinds of powders and all sorts of seating depth's.
Stay away from the RL powders, the hotter it got here in Az. the hotter my test loads got. I have had no temp issues with H 4831SC they shoot the same place all the time.
Tarey

[djtjr]

retumbo and h 1000

[highridge1]

RL25 is excellent in the 338 RUM and Edge. H1000 and retumbo have alot of difference lot to lot.I get better accuracy,velocity and a better ES with RL25. I had to change my load 4 grs with H1000 from changing lots of powder !! Never again..

[WV Sendero]

Originally Posted by djtjr

retumbo and h 1000

+1 on both. My Edge and 338 RUM like H1000. I shoot 300gr SMK in the Edge and 225 AB in the RUM. My 300 RUM likes Retumbo. Both powders are slow burning and handle temp changes very well.