Ruger15151
F-Class Shooter (6BRA and WIN 284)
Yah.. mine seems to tune in the 2720s with about 44.0 - 44.3grs of Varget and 450s. I am going to play with N150 when it warms up. Will that tune in the same area?
185 juggernaut nodes
- Thread starter Phys86
- Start date
LVLAaron
Gold $$ Contributor
For me, Varget/N150 like about the same speed. Maybe 20-25 feet slower.
I just tested a 26" Outlier Nitrided 308 barrel two days ago in 30 deg temps. 43.5 gr Varget, Lapua Palma brass, CCI 450 primers with 185 Juggernauts. It did 2706 fps with a 6 SD. Two rounds we tried 43.3 gr N 140 did 2730 fps. Brand new barrel, no break in and shot great. Target is in the Precision/NRL/PRS area, this was no load development. Took 11.5 moa to 540 yards, great bullet.
Shot my same load out of a buddies newly built 30" Criterion Savage and it was consistently 25-27 fps slower. No idea why, we didn't expect that. Maybe the Nitride coating?
Topstrap
Shot my same load out of a buddies newly built 30" Criterion Savage and it was consistently 25-27 fps slower. No idea why, we didn't expect that. Maybe the Nitride coating?
Topstrap
Last edited:
pushed it alot further back 8 years ago got great results out of my savage bartlien 32 10 twist ,under max pressure
I’m skeptical it’s under max pressure. Please post the load info.
Don't know what to tell you. It's not uncommon, we have been doing it for over a decade. And the 200-20x easily goes 2700 fps. Not our first rodeo.
185J - 45.2 to 45.8 of Varget, barrel dependent, gets 2800 fps.
185H - 46.4+- of Varget, barrel dependent, gets 2800 fps.
200-20x - 44.1+- of Varget, barrel dependent, gets 2700 fps.
The greater the jump, the faster you can go...
Lane
Last edited:
You could post up the load info
I see you've edited your post to include the powders.
At a 3" COAL + 45.8 grains of Varget + 30" Barrel = ~63,400 PSI (GRT)
At a 3" COAL + 46.4 grains of Varget + 30" Barrel = ~66,100 PSI (GRT)
So, with your ranges, you're right at maximum pressure, assuming a 3" COAL.
What are your COALs?
COAL is irrelevant. That would depend upon how much one trims off the tip of the bullets. What really matters is the freebore and the corresponding bullet jump. I always test faster loads to get some idea where max actually might be, and 2800 fps with a 185J is not it.
It's quite relevant if you don't trim.
There's also an important distinction between when you see pressure signs with your brass and max pressure. You may not see pressure signs and get 3 loads out of Lapua brass ... but I'd still bet that it's over pressure.
But I get it, you're getting 2800 loading them quite long.
Last edited:
Sorry to be reviving an old thread. I recently acquired an ftr rifle and this is my first time pushing the pressure limits. Prior to doing my ladder test I wanted to see the range I had to work with and found pressure signs starting around 2700 fps with 185 jugs. I see recommended loads being 2700-2750fps for getting into a node. This being the case would you all keep developing a load with what you got or make an early change to try getting higher speeds with out the pressure signs (if possibe)? If so, what’s the first change you’d make?
For reference, I’m running a Borden brm with a 30” Krieger, Lapua Palma brass, .050 off the lands, and 44.0 grains of N150 to get 2700.
For reference, I’m running a Borden brm with a 30” Krieger, Lapua Palma brass, .050 off the lands, and 44.0 grains of N150 to get 2700.
I found a node with N150 30" Barrel with .170FB jump .10 off @ 2730 fps with Ginex primer 5.4SD 43.2 GRNS
My 308 has a 32“ Bartline 5R 12 T. VV150 was the path to mid 2700 fps for me. Varget pressured out way before mid 2700 showed up.
With either Lapua SP or LP brass, VV150 was the better choice.
Rather than setting a target velocity, look where the best accuracy is obtained. Higher velocity with larger groups is not gonna put u in the X ring.
Working at the edge of max pressures is not a good practice. If those max loads were worked up in the Spring, by Summer the increase in temps can make bad things happen. Blow a primer during a match n have ur rifle disabled ( if that is the worst that happens) is not worth the perceived advantage .
Keeps ur loads safe and work on becoming a better reader of conditions. That is where the real advantage is.
With either Lapua SP or LP brass, VV150 was the better choice.
Rather than setting a target velocity, look where the best accuracy is obtained. Higher velocity with larger groups is not gonna put u in the X ring.
Working at the edge of max pressures is not a good practice. If those max loads were worked up in the Spring, by Summer the increase in temps can make bad things happen. Blow a primer during a match n have ur rifle disabled ( if that is the worst that happens) is not worth the perceived advantage .
Keeps ur loads safe and work on becoming a better reader of conditions. That is where the real advantage is.
Upgrades & Donations
This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.