Badlands BD-2 load data

[SheepShapeAK]

Sorry should have been more specific. I was referring to the 300 PRC load.

79.7 grains of N570 with the 195 in my 300 PRC is getting an average of 3030 fps.

 

[JTH]

Sorry should have been more specific. I was referring to the 300 PRC load.

I had a 300 PRC with 24" barrel running the 195's with 80.7 grains of N570 about 3030 fps if I remember correctly (after the barrel was broken in, early on the charge was a bit lighter). In that rifle I was running them 0.040 to 0.050 off the lands. If you're chasing speed it would be hard to beat N570 with the 195's in a 300 PRC.

There's pretty significant throat erosion with N570 and leaves a lot of powder residue behind, I replaced that barrel after about 800 rounds. Not as big a deal if you don't intend to shoot this one that much. H1000 will run about 100 fps slower but it burns a lot cleaner (very noticeable if you run suppressed) and will not burn the throat out as quickly.

 

[Wedgy]

Were the four shot groups at 500 yds? Would do 2 shot groups starting 0.005" off jam length and proceed with 0.005" increments. Want to be sure the barrel temp remains low since in hunting situations all first shots are cold bore.

4 shot groups are at 500 yards, her gun likes 0.020" off.
All shots are ~3 minutes apart with a Chamber Chiller blowing in the barrel, shot off a bipod and rear bag.

 

[cbuck516]

79.7 grains of N570 with the 195 in my 300 PRC is getting an average of 3030 fps.

I had a 300 PRC with 24" barrel running the 195's with 80.7 grains of N570 about 3030 fps if I remember correctly (after the barrel was broken in, early on the charge was a bit lighter). In that rifle I was running them 0.040 to 0.050 off the lands. If you're chasing speed it would be hard to beat N570 with the 195's in a 300 PRC.

There's pretty significant throat erosion with N570 and leaves a lot of powder residue behind, I replaced that barrel after about 800 rounds. Not as big a deal if you don't intend to shoot this one that much. H1000 will run about 100 fps slower but it burns a lot cleaner (very noticeable if you run suppressed) and will not burn the throat out as quickly.

I have also tried N570 behind the 195gr in my 300 PRC. 83.5grs produced 3032fps in my rifle with no pressure. That is just a factory Howa barrel at 24". I only did a pressure ladder with N570. After not being able to find N570 for a year I have up and switched to N565 for all further load development as I was able to grab 8# of it. I think the powder granule size of N565 is easier to precisely get the weight you are targeting, but the N570 velocity curve is so much flatter it may be a wash. I have generally found higher possible velocities with N570.

 

[SheepShapeAK]

I had a 300 PRC with 24" barrel running the 195's with 80.7 grains of N570 about 3030 fps if I remember correctly (after the barrel was broken in, early on the charge was a bit lighter). In that rifle I was running them 0.040 to 0.050 off the lands. If you're chasing speed it would be hard to beat N570 with the 195's in a 300 PRC.

There's pretty significant throat erosion with N570 and leaves a lot of powder residue behind, I replaced that barrel after about 800 rounds. Not as big a deal if you don't intend to shoot this one that much. H1000 will run about 100 fps slower but it burns a lot cleaner (very noticeable if you run suppressed) and will not burn the throat out as quickly.

What H1000 charge did you find worked with the 195's in your 300 PRC?

 

[JTH]

I tested both N570 and H1000 with the 199 Hammers before I found the 195 Badlands. With the Hammers I got a full case, slightly compressed at 83.0 grains for both the H1000 and N570, they ran 3058 and 3114 respectively. I was chasing velocity at the time so never tried H1000 in that barrel with the 195 Badlands. I would probably start at about 75 grains of H1000 and work my way up looking for pressure. You might get to a full case. My next 300 PRC will have an 8 twist so I can run the 205's.

 

[JTH]

Some new data for the 300WSM in the 23 Hodgdon manual. I plan on experimenting with the StaBall 6.5 as it's a little slower and get better fill with it. Temp stable also. I'd be interested in what you could produce with StaBall in yours. I plan on trying the 175 with StaBall and RL23 as my 300WSM is 1/10.

I ran a pressure test in the 300 WSM with H4831SC and the 195's this morning. Seated 0.020 off the lands

62.0 - 2681 fps
63.0 - 2725 fps
64.0 - 2769 fps
65.0 - 2811 fps
66.0 - 2857 fps
67.0 - 2896 fps
68.0 - 2946 fps. Slightly compressed, faint ejector, easy bolt lift. Stopped here.

These were fired at 200 yards. The H4831SC is showing some promise. I'm liking the velocity and group of 67-68 but that hard left shift is no bueno, I'm guessing there's something going on with barrel harmonics there. Will look for a node in the 65-66 range.

Also loaded 3 with 59.0 of H4350 and some 210M primers, shot 0.6 inches at 200 yards, but only running 2740 fps. ES was 4.96 on those 3 rounds.

 

[JAYgs8163]

I ran a pressure test in the 300 WSM with H4831SC and the 195's this morning. Seated 0.020 off the lands

62.0 - 2681 fps
63.0 - 2725 fps
64.0 - 2769 fps
65.0 - 2811 fps
66.0 - 2857 fps
67.0 - 2896 fps
68.0 - 2946 fps. Slightly compressed, faint ejector, easy bolt lift. Stopped here.

View attachment 480361
These were fired at 200 yards. The H4831SC is showing some promise. I'm liking the velocity and group of 67-68 but that hard left shift is no bueno, I'm guessing there's something going on with barrel harmonics there. Will look for a node in the 65-66 range.

Also loaded 3 with 59.0 of H4350 and some 210M primers, shot 0.6 inches at 200 yards, but only running 2740 fps. ES was 4.96 on those 3 rounds.

Very nice. My plan is to run the 150 in my 308 which I already have a load development done for. The 175 in my 300WSM and the 195 in my 300PRC. It's just too dang hot here now in Tucson to do anything with load development.

 

[nralifer]

I ran a pressure test in the 300 WSM with H4831SC and the 195's this morning. Seated 0.020 off the lands

62.0 - 2681 fps
63.0 - 2725 fps
64.0 - 2769 fps
65.0 - 2811 fps
66.0 - 2857 fps
67.0 - 2896 fps
68.0 - 2946 fps. Slightly compressed, faint ejector, easy bolt lift. Stopped here.

View attachment 480361
These were fired at 200 yards. The H4831SC is showing some promise. I'm liking the velocity and group of 67-68 but that hard left shift is no bueno, I'm guessing there's something going on with barrel harmonics there. Will look for a node in the 65-66 range.

Also loaded 3 with 59.0 of H4350 and some 210M primers, shot 0.6 inches at 200 yards, but only running 2740 fps. ES was 4.96 on those 3 rounds.

You have some excellent results there with H4831SC. I would not worry about the the left shift of the 67-68 gr group. I agree that it is likely a barrel harmonics issue. Very accurate results for a hunting rig. How far do you intend to shoot at Elk or Deer with your 300 WSM? SB6.5 will likely give you more speed but it is hard to improve on touching holes at 200 yds. The BC on that bullet is so good that you can kill anything in North America at 900-1000 yds. I personally limit myself to 500 yds. The high BC handles the wind much better, and where I hunt wind is always a factor.

 

[JTH]

You have some excellent results there with H4831SC. I would not worry about the the left shift of the 67-68 gr group. I agree that it is likely a barrel harmonics issue. Very accurate results for a hunting rig. How far do you intend to shoot at Elk or Deer with your 300 WSM? SB6.5 will likely give you more speed but it is hard to improve on touching holes at 200 yds. The BC on that bullet is so good that you can kill anything in North America at 900-1000 yds. I personally limit myself to 500 yds. The high BC handles the wind much better, and where I hunt wind is always a factor.

Most days I would say my limit is 600 yards, but if the conditions were perfect I might push it to 800, wind being the main factor. The powder temperature stability chart that I have shows H4831SC to be even more stable than Varget or H4350 with a rating of 0.08. That's a big plus for me, regularly hunting in below freezing and sometimes sub zero temps.

With that left shift at 67-68, would you load in the 67.5 range? Seems like there's a risk of the barrel harmonics in this velocity range being an anomaly that may come and go, maybe less of a concern with temp stable powder? I loaded up a bunch of pairs from 64.7 to 66.2 in 0.3 grain increments for an OCW test, wondering if I should consider loading a few more to get me into the mid 67 range.

The bc is for real on these, when I tested them in my 300 PRC the drops lined right up with the Strelock data out to 600 yards and wind drift was minimal.

 

[nralifer]

Most days I would say my limit is 600 yards, but if the conditions were perfect I might push it to 800, wind being the main factor. The powder temperature stability chart that I have shows H4831SC to be even more stable than Varget or H4350 with a rating of 0.08. That's a big plus for me, regularly hunting in below freezing and sometimes sub zero temps.

With that left shift at 67-68, would you load in the 67.5 range? Seems like there's a risk of the barrel harmonics in this velocity range being an anomaly that may come and go, maybe less of a concern with temp stable powder? I loaded up a bunch of pairs from 64.7 to 66.2 in 0.3 grain increments for an OCW test, wondering if I should consider loading a few more to get me into the mid 67 range.

The bc is for real on these, when I tested them in my 300 PRC the drops lined right up with the Strelock data out to 600 yards and wind drift was minimal.

I would simply load with 67.5 gr. Your accuracy is more than enough to shoot accurately to at least 600 yds. The BC is high enough to give less wind drift than any copper bullet out there and it will arrive with significantly higher bullet speed and energy.

 

[JTH]

I ran a pressure test in the 300 WSM with H4831SC and the 195's this morning. Seated 0.020 off the lands

62.0 - 2681 fps
63.0 - 2725 fps
64.0 - 2769 fps
65.0 - 2811 fps
66.0 - 2857 fps
67.0 - 2896 fps
68.0 - 2946 fps. Slightly compressed, faint ejector, easy bolt lift. Stopped here.

View attachment 480361
These were fired at 200 yards. The H4831SC is showing some promise. I'm liking the velocity and group of 67-68 but that hard left shift is no bueno, I'm guessing there's something going on with barrel harmonics there. Will look for a node in the 65-66 range.

Also loaded 3 with 59.0 of H4350 and some 210M primers, shot 0.6 inches at 200 yards, but only running 2740 fps. ES was 4.96 on those 3 rounds.

I went out to the range yesterday to do an OCW test at 600 yards. It was 80 degrees out with a WNW wind blowing 8-15 mph, shooting West to East.

Started at 64.7 grains of H4831 SC and worked up to 66.8 grains in 0.3 grain increments. These were all loaded 0.020 off the lands. For the sake of time, I was only shooting 2 round groups, had to wait 5+ minutes for the barrel to cool down between shots. The wind was definitely pushing the bullet around a bit, and there was one group where I pulled a shot (maybe 2).

I had previously zero'd the rifle at 200 yards with 65.3 grains going 2821 fps. Strelock had the 600 yard solution for 900 feet elevation at 29.9 clicks. With the first 3 sighting/fouler rounds I adjusted to 27 clicks and left it there for the afternoon to keep everything consistent. At 2825 fps the actual solution would have been about 28.5 clicks, so the bc of the 195 in this rifle may be a little better than advertised.

Here's the target.

64.7 had 1.266 vertical and group of 3.375 Speed was 2810 fps. ES not recorded
65.0 had 0.667 vertical and group of 1.044 Speed was 2827 fps ES 10.53
65.3 I pulled the shot. Called it as the shot broke. 1.488 vertical but group was over 6" Speed was 2824 fps ES 1.84
65.6 had 0.451 vertical and group of 2.387 Speed was 2853 fps ES 2.38
65.9 had 0.333 vertical and group of 2.768 Speed was 2863 fps ES 8.5
66.2 not sure what happened, both shots felt good, Vertical and group over 6" Speed was 2871 fps ES 0
66.5 had 0.433 vertical and group of 1.106 Speed was 2878 fps ES 29.4
66.8 had vertical of 1.917 and group of 1.992. Speed was 2880 fps ES 28.89 (fired a third round at a steel plate after I had the target down that went 2907 pushing the ES up)

I realize these were only 2 shot groups but the results look pretty promising. In the previous 200 yard pressure testing I had a noticeable POI shift at 67 and 68 grains, and slight pressure at 68. Wanting to stay at least a grain away from pressure I stopped at 66.8 grains.

I'm curious to know what other long range shooters would do for loading based on the target and labradar results above.

 

[SheepShapeAK]

I went out to the range yesterday to do an OCW test at 600 yards. It was 80 degrees out with a WNW wind blowing 8-15 mph, shooting West to East.

View attachment 482148

Started at 64.7 grains of H4831 SC and worked up to 66.8 grains in 0.3 grain increments. These were all loaded 0.020 off the lands. For the sake of time, I was only shooting 2 round groups, had to wait 5+ minutes for the barrel to cool down between shots. The wind was definitely pushing the bullet around a bit, and there was one group where I pulled a shot (maybe 2).

I had previously zero'd the rifle at 200 yards with 65.3 grains going 2821 fps. Strelock had the 600 yard solution for 900 feet elevation at 29.9 clicks. With the first 3 sighting/fouler rounds I adjusted to 27 clicks and left it there for the afternoon to keep everything consistent. At 2825 fps the actual solution would have been about 28.5 clicks, so the bc of the 195 in this rifle may be a little better than advertised.

Here's the target.

View attachment 482152

64.7 had 1.266 vertical and group of 3.375 Speed was 2810 fps. ES not recorded
65.0 had 0.667 vertical and group of 1.044 Speed was 2827 fps ES 10.53
65.3 I pulled the shot. Called it as the shot broke. 1.488 vertical but group was over 6" Speed was 2824 fps ES 1.84
65.6 had 0.451 vertical and group of 2.387 Speed was 2853 fps ES 2.38
65.9 had 0.333 vertical and group of 2.768 Speed was 2863 fps ES 8.5
66.2 not sure what happened, both shots felt good, Vertical and group over 6" Speed was 2871 fps ES 0
66.5 had 0.433 vertical and group of 1.106 Speed was 2878 fps ES 29.4
66.8 had vertical of 1.917 and group of 1.992. Speed was 2880 fps ES 28.89 (fired a third round at a steel plate after I had the target down that went 2907 pushing the ES up)

I realize these were only 2 shot groups but the results look pretty promising. In the previous 200 yard pressure testing I had a noticeable POI shift at 67 and 68 grains, and slight pressure at 68. Wanting to stay at least a grain away from pressure I stopped at 66.8 grains.

I'm curious to know what other long range shooters would do for loading based on the target and labradar results above.

I'd choose the group with the least amount of vertical and shoot five shot groups just below, at, and just above that charge and seating depth at 100 to see what you get. Then take the best group and verify out at distance.

With one exception, those 64.7-65.9 shots look like they're close to the same waterline.

Need to find that node with the least amount of vertical and then fine tune with the seating depth.

You might need to take it to 100 before you take it out to distance. Really depends how much you're sitting on for components and what accuracy you'll be satisfied with.

 

[Schw15]

Badland bulldozer 2 7mm 150 grain load data for 7mm-300 win mag or 7 mag gets me really close. N565