Been occupying the 3-Gun void with a new hunting rifle in 6.5 PRC for a few weeks using 143gr ELD-X bullets and some of my go to magnum powders, I picked up a box of Berger 156 extreme outer limits bullets but can't seem to find any load data for them. Anyone out there loading these for this cartridge yet that could share some knowledge? Bonus points if you have data using Retumbo or RL 26.
6.5 PRC and heavy Berger's
- Thread starter fridge450
- Start date
I have a couple boxes but haven't loaded any yet in my PRC. I have a good load with the 150gr Sierra Matchking, I use RL33 for 3000 fps 24" brl
I use RL26 with up to 143gr but load density will start to suffer with the heavier for caliber bullet weights. I like to keep the case 90% + full
I use RL26 with up to 143gr but load density will start to suffer with the heavier for caliber bullet weights. I like to keep the case 90% + full
56.5 gr's RL26 with the 156 Berger RJ
2866 fps avg for 3 shots ! 23" barrel .
2866 fps avg for 3 shots ! 23" barrel .
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I’m interested in this as well for getting some heavy Bergers out of my 6.5 prc build. Found a few lbs of alliant 26 to test out some of the reloading data out there on the inter web. But will be interesting to see how it really does pushing a 156 around 3000fps at some distance like the internet is claiming.
Johnny what lenght of barrel do you have ? RJ
56.5 gr's RL26 with the 156 Berger
2866 fps avg for 3 shots ! 23" barrel .
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24” proof research barrel with a 1-7.5 twist on a tikka action.
That ball park you have wouldn’t be bad at all!
Mine maxed at 57gr R26, best accuracy 56.5
Another gooder is VV565. Best accuracy 56.2
Both 156 Bergers, CArms RL, 24". Both loads hovering around 2900-3000 (565 2910, R26 gets the velocity at 2990 - BOTH CALCULATED VIA TRAJECTORY)
Moose load is 156 Norma Oryx 56 R26 @ 2890 - crazy accurate for a big ugly non-efficient bullet!
3+ MOA diff at 500yds between 156 Berger and Oryx
Another gooder is VV565. Best accuracy 56.2
Both 156 Bergers, CArms RL, 24". Both loads hovering around 2900-3000 (565 2910, R26 gets the velocity at 2990 - BOTH CALCULATED VIA TRAJECTORY)
Moose load is 156 Norma Oryx 56 R26 @ 2890 - crazy accurate for a big ugly non-efficient bullet!
3+ MOA diff at 500yds between 156 Berger and Oryx
Really close to where I’m at as well.
I haven't had much time to do a thorough load work up but tried three loads to get a baseline with 56.5 of RL 26 being the most accurate without doing any chrono. Today while waiting for the rest of the crew to set up for IPSC provincials I put 2 groups past the Lab Radar,one using CCI BR-4 primers and the same charge with Federal match magnum primers. Both groups m.o.a. The CCI's had an average of 2930 with an extreme spread of 21, certainly room for improvement. The magnum match primers had an average of 2968fps with an extreme spread of 9 in a 24" 1-8 proof barrel.
What speed with that load do you get Aron ? RJ
57 grains of H1000 and a F210M primer was 2820. Same charge with a F215M was 2850. My barrel is still speeding up as a get a few more rounds down it, CA Mesa with 24” barrel. Using ADG brass, 156 bergers
What is the twist rate of your barrel? I am looking to shoot the 150's in my PRC, but I only have an 8 twist and I am unsure if it will stabilize.
Where on earth did you find Retumbo...
h ttps://shop.nechakooutdoors.ca/product.php?productid=15024
Free shipping on $75+ too
