POWDER FOR THE 300 RUM?

[I SHOOT STUFF]

Done with barrel break-in, and ready to start reloading my fired brass. I want to use 180 gr barnes tsx, or MRX, if they fit.

Power suggestions/charges?

 

[lovdasnow]

I've been working with retumbo and H-1000, and havn't found my load yet, but getting closer.

Have heard some really good things about RL 25, and wanted to try that but then I heard it is really temp sensitive, so I don't know.

There a lot of guys on here with more experiance than me, and I'm sure they will chime in soon. Good luck with load development...

 

[accuratebrass]

how close to max are your retumbo loads?

 

[HoytemanPA]

I use 99-100 gr Retumbo with 180gr Btips. My woodchuck load, but I think they'd kill anything.

200 gr Accubonds are also a very good bullet for the Rum.
91 RL25 or 94 Retumbo FedGM215 in mine and my huntin pard's rifles.

 

[bailey1474]

This is jmo but, if you want to get the most out of the RUM, skip the 180s and go w/something 200 gr or bigger.

 

[Michael Eichele]

RL-25 has by far been the best performing powder for my 300 RUM both in accuracy and velocity. I run top loads with awesome accuracy.

I have noticed a bit of differance in loading from lot to lot. I just moniter my velocity and if its lower, I add, if its higher I drop it some. As soon as I make a small adjustment, presto, groups are pefect again.

I have used four lots of powder and each time I get perfect accuracy even though I have to adjust slightly. I have used other powders that no matter what I did, the new lot just would not group despite the old one being excellent.

 

[waylon]

Had real good luck with re22 shooting 178gr amax's with 95grs of powder but have switch to h1000 and 210 bergers.

 

[azsugarbear]

It took quite a while to find my 300 RUM load. Using a Lilja 27" barrel on a REM 700 action, I found that 98.8 grains of H1000 did the trick for me. My 180 grain Barnes TSX moves out at 3450 fps and groups just under half MOA. I found RL-25 and RL-22 produced higher velocities, but the fps had a greater variance between shots.

 

[Ace1]

Hey all new guy here. I have been running 180 gr Accubonds in front of a max load(102.5 gr) of Retumbo. They have been grouping @ around an inch consistantly. This load is on the warm side in my gun. Any RE 22 or 25 recipes folks want to share would be appreciated. Thanks