Powder for 300 PRC?

[lhp63190]

Hey guys -- Placed the order for a new 300 PRC yesterday and I'm starting to get my reloading components together. Powder continues to be an issue as we all know. I've only got a couple lbs of H1000 left and I need it to feed my 28 Nosler. That being said, I've been looking at Ramshot Magnum, N565, and N570 as substitutes for H1000. Temp stability and accuracy are more important to me than velocity. Also I'm planning to run Berger 215 or 212-225 ELD.

Please enlighten me.

LHP

 

[jpd676]

I tried Ramshot Magnum with 225 eldm's; got good accuracy but only around 2650 fps. I loaded Retumbo with the 225's but didn't get any decent accuracy. I tried Re26 with 225s and again, non accuracy. I ended up with Re26 and 208 amax. I got great accuracy and velocity (around 3000 fps). I'm shooting a Seekins Havak ph2 1/10 twist. I think Re26 is the way to go but Retumbor or H1000 are great as well.

 

[jd5521]

Here is data I have for RL26 and 225 eldm's. All shot at 300 yards. 4 shots per group. 28" bartlein 1:9


Here is all the data:

74.1 gr RL-26:
Average FPS: 2913
ES: 13
SD: 6.7
Group Size: 1.27"

74.4 gr RL-26:
Average FPS: 2926
ES: 21
SD: 8.8
Group Size: 2.42"

74.7 gr RL-26:
Average FPS: 2932
ES: 16
SD: 9.2
Group Size: 1.48"

75.0 gr RL-26:
Average FPS: 2950
ES: 29
SD: 13.9
Group Size: 1.82"

75.3 gr RL-26:
Average FPS: 2965
ES: 7
SD: 3.1
Group Size: 1.32"

75.6 gr RL-26:
Average FPS: 2979
ES: 5
SD: 2.3
Group Size: 1.52"

75.9 gr RL-26:
Average FPS: 2999
ES: 25
SD: 10.9
Group Size: 2.33"

76.2 gr RL-26:
Average FPS: 2994
ES: 12
SD: 5.6
Group Size: 1.28"

76.5 gr RL-26:
Average FPS: 3021
ES: 31
SD: 13.6
Group Size: 2.8"
Slight pressure signs

76.8 gr RL-26:
Average FPS: 3031
ES: 21
SD: 10.5
Group Size: 3.21"
Slight pressure signs

 

[lhp63190]

Thanks for the replies.