300 PRC pet loads

[mrcheesemoose]

Didn’t see a thread for 300 PRC load data. I want to collect some good loads people have tried to spare precious powder and primers for us that load 300 PRC.

I’ll start:

78 grains H1000
200 grain eldx
CCI 34s
Federal brass

Gives me pretty solid groups and right around 3000 fps in my 26 in barrel

 

[rustyinbend]

Rifle is a Barrett MRAD w/ 300-PRC Barrel Kit
Lapua 2x brass
Retumbo 77.4
Berger 220 LRHT
Federal GM LR Primers

Velocity 2,878 ft/sec
SD 6.32
ES 24

Dings 2'x2' steel at a mile all day long.

 

[max1840]

Mausingfield
Bartlein - 26" MTU - 1:8.5"
Hornady Brass 1x Fired
CCI250 Primer
RL26 - 75.4
Berger 230 LRHT
CBTO - 2.917
FPS - 2891
SD - 8.2 ES - 23

 

[drifter308]

Tempalar V2
Bartlein 26" 1.25 straight 1:9"
ADG 1X Brass
78.0 H1000
230 Berger OTM
CBTO 2.995
FPS 2,886
SD 2.6 ES 5

 

[yej0001]

Follow

 

[Huskydriver]

78gr retumbo. 26" 1/9

 

[HemiPowrd]

Made it out to the range today. Loaded up 40 rounds with 77.3 gr of H-1000. Loaded long and had to single feed each round.
Bartlein heavy 30" 1:9 twist
Virgin ADG brass
Hornady 230 gr A-tip
77.3 gr H-1000
CCI 200 primers
COL 3.826"
Jump 0.015"

Barrel looks it was still speeding up with 110 rounds down the pipe. Getting around 2865 FPS now. This may not be my final load just yet since I was using virgin brass and speed on the barrel may still be climbing, but I'm thinking it'll at least be close.

Barrel tuner test target. Looks like tuner in position 12 is dead nuts. Two shots at each dot.

 

[Max_The_Phoenix]

Ok looks like I was able to finalize my load today.
Load #1
220 LRHT
Cci 250
77.4gr Retumbo @ 2856fps
SD: 2.4, ES:4

Load #2
220 LRHT
Cci 250
78.6 gr Retumbo @ 2907fps
SD: 9.1, ES:18

Both are making 0.28 MOA 3 shot group at 100 yards.

 

[mrcheesemoose]

Ok looks like I was able to finalize my load today.
Load #1
220 LRHT
Cci 250
77.4gr Retumbo @ 2856fps
SD: 2.4, ES:4

Load #2
220 LRHT
Cci 250
78.6 gr Retumbo @ 2907fps
SD: 9.1, ES:18

Both are making 0.28 MOA 3 shot group at 100 yards.

What’s the barrel?

 

[Max_The_Phoenix]

What’s the barrel?

Bartlein HV 1:9 28" with 250rds

 

[Kickin45]

Ordered a new barrel 2 weeks ago. 1:8tw, 28” for the DT SRSa1.
Talked to the Berger rep Friday (can’t say enough good things about their customer care). He gave me some incredible insights for the 230 & 245 Bergers. I’ve never shot them, but am excited to develop a load for them.
I’ll update here as that load developments.
My goal with the 245’s is 2850-2875fps and single digits.
Your guys info has been incredibly beneficial. Hope I can soon return the favor
Fingers crossed

 

[Jink00]

Didn’t see a thread for 300 PRC load data. I want to collect some good loads people have tried to spare precious powder and primers for us that load 300 PRC.

I’ll start:

78 grains H1000
200 grain eldx
CCI 34s
Federal brass

Gives me pretty solid groups and right around 3000 fps in my 26 in barrel

I just did a load workup for my bergara wilderness hmr 26in barrel. My rifle loved
Adg brass
H1000-79.9 gr (over book no pressure signs)
Wlrm primers
220gr eldx
.042 off lands
3010 fps sd of 7.6
It shot .64 outside to outside on 2 4 shot grps

 

[Kickin45]

I just did a load workup for my bergara wilderness hmr 26in barrel. My rifle loved
Adg brass
H1000-79.9 gr (over book no pressure signs)
Wlrm primers
220gr eldx
.042 off lands
3010 fps sd of 7.6
It shot .64 outside to outside on 2 4 shot grps

What is your OAL?

 

[Jink00]

What is your OAL?

3.580