Brocock/BRK Ghost collaborative data request

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greenbeans said:
Got one for you:

.22 HP 23 inch barrel, reg 152ish (damn baby gauges…), blue spring:

AEA 25.3gr at 950fps on PW 16
AEA 21.9gr at 915fps on PW7
Hades 15.89gr at 940fps on MIN (they’re surprisingly accurate at that speed).

Could obviously shoot 18gr as well but the gun/barrel likes the 3 mentioned above so no need to try a 4th :)
Click to expand...
thanks @greenbeans - i'll add it now.
 
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Still waiting for the BRK slug barrels, or Sub-MOA to come out with a 22 barrel. While the 30 barrel is a heavy hitter it is a bit to large for what I would like to do. I want to use my Corbin Press and make custom slugs for the rifle. So now I am stuck waiting, but with the 30 cal shooting around 980 fps the pellets are grouping quite nicely at 100 yards. I found that the accuracy issues I was having was due to pellet clipping in my Donny! Swapped units and she is quiet and still as accurate.

I am curious if the HP model would be able to rock a little smaller barrel, and use a unit on the end. Not sure if there is enough space there for an end barrel unit or not. Would make for a compact and fun truck gun.
 
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Cool rainy day so doing a little indoor basement range time tonight. I had the .177 plus barrel on the Ghost white hammer spring reg set at around 125 power wheel on 2 sub 12 fpe
Low: 687 FPS
Hi: 703 FPS
Avg: 696 FPS
Spread: 16 FPS
STD Dev: 5.2 FPS
16-Dec-2024 20:21:53,687,FPS,11.0,FT Lbs,
16-Dec-2024 20:22:03,687,FPS,11.0,FT Lbs,
16-Dec-2024 20:26:55,694,FPS,11.2,FT Lbs,
16-Dec-2024 20:27:03,698,FPS,11.4,FT Lbs,
16-Dec-2024 20:27:09,696,FPS,11.3,FT Lbs,
16-Dec-2024 20:27:15,698,FPS,11.4,FT Lbs,
16-Dec-2024 20:27:21,696,FPS,11.3,FT Lbs,
16-Dec-2024 20:27:28,696,FPS,11.3,FT Lbs,
16-Dec-2024 20:27:34,703,FPS,11.5,FT Lbs,
16-Dec-2024 20:27:52,703,FPS,11.5,FT Lbs,

Power Wheel turned to 17

Ghost .177, JSB
Shot count: 9
Low: 893 FPS
Hi: 900 FPS
Avg: 896 FPS
Spread: 7 FPS
STD Dev: 2.8 FPS
16-Dec-2024 20:17:15,895,FPS,18.7,FT Lbs,
16-Dec-2024 20:17:35,893,FPS,18.6,FT Lbs,
16-Dec-2024 20:17:39,895,FPS,18.7,FT Lbs,
16-Dec-2024 20:17:45,895,FPS,18.7,FT Lbs,
16-Dec-2024 20:18:00,900,FPS,18.9,FT Lbs,
16-Dec-2024 20:18:07,893,FPS,18.6,FT Lbs,
16-Dec-2024 20:18:14,895,FPS,18.7,FT Lbs,
16-Dec-2024 20:18:20,900,FPS,18.9,FT Lbs,
16-Dec-2024 20:18:26,900,FPS,18.9,FT Lbs,
 
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Shortcut said:
Cool rainy day so doing a little indoor basement range time tonight. I had the .177 plus barrel on the Ghost white hammer spring reg set at around 125 power wheel on 2 sub 12 fpe
Low: 687 FPS
Hi: 703 FPS
Avg: 696 FPS
Spread: 16 FPS
STD Dev: 5.2 FPS
16-Dec-2024 20:21:53,687,FPS,11.0,FT Lbs,
16-Dec-2024 20:22:03,687,FPS,11.0,FT Lbs,
16-Dec-2024 20:26:55,694,FPS,11.2,FT Lbs,
16-Dec-2024 20:27:03,698,FPS,11.4,FT Lbs,
16-Dec-2024 20:27:09,696,FPS,11.3,FT Lbs,
16-Dec-2024 20:27:15,698,FPS,11.4,FT Lbs,
16-Dec-2024 20:27:21,696,FPS,11.3,FT Lbs,
16-Dec-2024 20:27:28,696,FPS,11.3,FT Lbs,
16-Dec-2024 20:27:34,703,FPS,11.5,FT Lbs,
16-Dec-2024 20:27:52,703,FPS,11.5,FT Lbs,

Power Wheel turned to 17

Ghost .177, JSB
Shot count: 9
Low: 893 FPS
Hi: 900 FPS
Avg: 896 FPS
Spread: 7 FPS
STD Dev: 2.8 FPS
16-Dec-2024 20:17:15,895,FPS,18.7,FT Lbs,
16-Dec-2024 20:17:35,893,FPS,18.6,FT Lbs,
16-Dec-2024 20:17:39,895,FPS,18.7,FT Lbs,
16-Dec-2024 20:17:45,895,FPS,18.7,FT Lbs,
16-Dec-2024 20:18:00,900,FPS,18.9,FT Lbs,
16-Dec-2024 20:18:07,893,FPS,18.6,FT Lbs,
16-Dec-2024 20:18:14,895,FPS,18.7,FT Lbs,
16-Dec-2024 20:18:20,900,FPS,18.9,FT Lbs,
16-Dec-2024 20:18:26,900,FPS,18.9,FT Lbs,
Click to expand...
@Shortcut
Hey what pellet were you using?
Also you can turn the reg down to 110 and save some air and noise while maintaining accuracy.
 
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PowderBurnt said:
After changing your regulator settings, how close are you to getting to any of your other tunes? The guages are pretty darn small to get it exactly right. Are there guages that fit that are easier to read?
Click to expand...
There are some electronic gauges that work but I’m not recalling the source. I do recall seeing a YouTube video with them on a ghost. ?schmekt?
 
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PowderBurnt said:
I read that the slug barrel is available, but has anyone seen from where? There's none at AoA.
Click to expand...
BRK told me “should be in stock in December, order through AOA” in November. On back order since then with AOA but I think they can keep it as this point since the .22 and .25 (28in) barrels I have are laser accurate with pellets and I don’t actually need another slugger… and U3 will be here soon so there’s that…
 
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Shortcut said:
Cool rainy day so doing a little indoor basement range time tonight. I had the .177 plus barrel on the Ghost white hammer spring reg set at around 125 power wheel on 2 sub 12 fpe
Low: 687 FPS
Hi: 703 FPS
Avg: 696 FPS
Spread: 16 FPS
STD Dev: 5.2 FPS
16-Dec-2024 20:21:53,687,FPS,11.0,FT Lbs,
16-Dec-2024 20:22:03,687,FPS,11.0,FT Lbs,
16-Dec-2024 20:26:55,694,FPS,11.2,FT Lbs,
16-Dec-2024 20:27:03,698,FPS,11.4,FT Lbs,
16-Dec-2024 20:27:09,696,FPS,11.3,FT Lbs,
16-Dec-2024 20:27:15,698,FPS,11.4,FT Lbs,
16-Dec-2024 20:27:21,696,FPS,11.3,FT Lbs,
16-Dec-2024 20:27:28,696,FPS,11.3,FT Lbs,
16-Dec-2024 20:27:34,703,FPS,11.5,FT Lbs,
16-Dec-2024 20:27:52,703,FPS,11.5,FT Lbs,

Power Wheel turned to 17

Ghost .177, JSB
Shot count: 9
Low: 893 FPS
Hi: 900 FPS
Avg: 896 FPS
Spread: 7 FPS
STD Dev: 2.8 FPS
16-Dec-2024 20:17:15,895,FPS,18.7,FT Lbs,
16-Dec-2024 20:17:35,893,FPS,18.6,FT Lbs,
16-Dec-2024 20:17:39,895,FPS,18.7,FT Lbs,
16-Dec-2024 20:17:45,895,FPS,18.7,FT Lbs,
16-Dec-2024 20:18:00,900,FPS,18.9,FT Lbs,
16-Dec-2024 20:18:07,893,FPS,18.6,FT Lbs,
16-Dec-2024 20:18:14,895,FPS,18.7,FT Lbs,
16-Dec-2024 20:18:20,900,FPS,18.9,FT Lbs,
16-Dec-2024 20:18:26,900,FPS,18.9,FT Lbs,
Click to expand...
@Shortcut - fantastic information
 
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I though I would add my Ghost strings as well. My new .30 came set at 135 bar, but after the regulator broke in a bit went to 155 bar. I had to reset it down, so I tried a number of regulator settings along the way. Note all pellets has HBx on them to season the barrel. I also noted that the barrel needed a deep clean due to some brown antifouling coating.

Dan

Note 23" barrel
Also note I switched to an electronic Edgun gauge after the first run. It's a shame a $2K gun doesn't come with decent gauges.
1737682069733.png
 
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So, I liked the 30 cal Ghost so well, when a World Record version came up for sale tuned by Derrick, I jumped on it. I had a similar problem with the reg moving up as it settled in, originally it was set for 110 bar, but went to 135 bar after a few shots. So I took advantage and ran a few over the chrony as well.

BTW - I have a .22 28" barrel (1:28 twist) inbound from AOA shortly.

Dan

Note 28" barrel
1737682261751.png
 
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DrPutz said:
I though I would add my Ghost strings as well. My new .30 came set at 135 bar, but after the regulator broke in a bit went to 155 bar. I had to reset it down, so I tried a number of regulator settings along the way. Note all pellets has HBx on them to season the barrel. I also noted that the barrel needed a deep clean due to some brown antifouling coating.

Dan

Note 23" barrel
Also note I switched to an electronic Edgun gauge after the first run. It's a shame a $2K gun doesn't come with decent gauges.
View attachment 531905
Click to expand...
Thanks Dan
excellent work - so good in fact how would you feel about doing a chart like this for all the data we’ve gathered so far?
 
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DrPutz said:
So, I liked the 30 cal Ghost so well, when a World Record version came up for sale tuned by Derrick, I jumped on it. I had a similar problem with the reg moving up as it settled in, originally it was set for 110 bar, but went to 135 bar after a few shots. So I took advantage and ran a few over the chrony as well.

BTW - I have a .22 28" barrel (1:28 twist) inbound from AOA shortly.

Dan

Note 28" barrel
View attachment 531906
Click to expand...
weird - i could see the numbers on my phone app but on my MAC they are there but black on black so mostly invisible.
 
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greenbeans said:
BRK told me “should be in stock in December, order through AOA” in November. On back order since then with AOA but I think they can keep it as this point since the .22 and .25 (28in) barrels I have are laser accurate with pellets and I don’t actually need another slugger… and U3 will be here soon so there’s that…
Click to expand...
AoA just said they aren't out yet. 🥺
 
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