300 RUM with RL33 and RL26

[WYO300RUM]

Does anybody have any starting load data for RL 33 in a 300 RUM ? Any favorite loads with any bullet ? Having a hard time finding . I haven't acquired any of the magic 26 dust yet but plan to try it also. Been using Retumbo for years. Be hard to beat. Have also used RL25 and H1000. Bought some IMR 4000 that havent tried yet. Not much data on it either. Thanks to all in advance. You guys are great and always are a great help .

I'll bring up same question with 300 win mag and 7 Rem mag load data later with same powders . Maybe 6.5 PRC.

Thanks!
Don

 

[tbrice23]

200 gr Accubonds, RL33, 215M primers.

230gr OTM, RL33, 215M

Your probably going to find RL26 is too fast burning rate to use in a RUM with any bullet that the RUM should be using. (200+).
However RL25 is a slightly slower burning powder and have heard good things with 200gr bullets.

 

[Blackdirt Cowboy]

Start in the low 90s with RL33 and 230 grain Berger's with federal 215m primers. Work up until you find pressure. This is an awesome combination.

 

[JKB57]

Remington brass, 180 gr Nosler accubond,97.0 gr retumbo, federal 215M primer. Load has shot very well in several 300 RUM and have taken many elk here in Wyoming

 

[Draftmule]

200 grain Accubonds + Retumbo magic for me also. My powder supplier is stocking IMR 8133 (Enduron) for those of us down to last of our Retumbo. Hodgdonreloading.com for recipes, does list 300 Ultra Mag. on pound jar. Purchased a pound but have not tried it yet. Thank you for the post.

 

[WYO300RUM]

200 gr Accubonds, RL33, 215M primers.

230gr OTM, RL33, 215M

Your probably going to find RL26 is too fast burning rate to use in a RUM with any bullet that the RUM should be using. (200+).
However RL25 is a slightly slower burning powder and have heard good things with 200gr bullets.

Great thanks ! I didn't know RL25 was slower than RL26 ? I've tried IMR8133 also. Not much luck. Retumbo is going to be hard to beat.

 

[WYO300RUM]

Start in the low 90s with RL33 and 230 grain Berger's with federal 215m primers. Work up until you find pressure. This is an awesome combination.

Thanks ! I don't have any Berger 230. Just 210 VLD and 215 Hybrid. I may get sone 230s now

 

[tbrice23]

Great thanks ! I didn't know RL25 was slower than RL26 ? I've tried IMR8133 also. Not much luck. Retumbo is going to be hard to beat.

I load rl25 in my 300wm with 185gr at about 3230, very accurate.

 

[WYO300RUM]

Remington brass, 180 gr Nosler accubond,97.0 gr retumbo, federal 215M primer. Load has shot very well in several 300 RUM and have taken many elk here in Wyoming

Thanks ! I've used that exact load ! I settled on 98.0 grs. though. If I remember 97.0 was a tad more accurate . Same load with 185 Berger VLD works good also.

 

[WYO300RUM]

200 grain Accubonds + Retumbo magic for me also. My powder supplier is stocking IMR 8133 (Enduron) for those of us down to last of our Retumbo. Hodgdonreloading.com for recipes, does list 300 Ultra Mag. on pound jar. Purchased a pound but have not tried it yet. Thank you for the post.

No thank you ! I've been trying 8133 But so far doesn't match Retumbo. I've tried Hornady 200 gr. RLDX with 92.5 grs. 8133 . Was ok. Loaded some 181 Hammers with 8133 But not shot yet.

 

[tbrice23]

No thank you ! I've been trying 8133 But so far doesn't match Retumbo. I've tried Hornady 200 gr. RLDX with 92.5 grs. 8133 . Was ok. Loaded some 181 Hammers with 8133 But not shot yet.

I've been trying 8133 and I really believe it is a faster burning powder than Retumbo. No matter what Hodgdon says.

 

[WYO300RUM]

I load rl25 in my 300wm with 185gr at about 3230, very accurate.

Thanks ! That's my next project . 300 win mag. It never ends.. lol

 

[WYO300RUM]

I've been trying 8133 and I really believe it is a faster burning powder than Retumbo. No matter what Hodgdon says.

I thought it was and I'm with you.

 

[Bravo 4]

I've been trying 8133 and I really believe it is a faster burning powder than Retumbo. No matter what Hodgdon says.

So far my experience with 8133 (in a .338 RUM) has shown it to have basically the same velocity as RL25 with the same charges. Not exactly the .300 RUM, but close so your mileage may vary.