Brocock/BRK Ghost collaborative data request

[cavedweller]

BRK Ghost .22 HP 23" Barrel
Reg = 110 BAR (Digital Gauge)
White hammer spring

==================================

JSB Hades Monster 25.39 gr PW=MAX 881 FPS avg.

Shot count: 5
Low: 880
Hi: 881
Avg: 881
STD Dev: 0
Spread: 1

4/20/25 7:45:41 PM,881,FPS,43.8,FT Lbs,
4/20/25 7:45:46 PM,880,FPS,43.7,FT Lbs,
4/20/25 7:45:50 PM,881,FPS,43.8,FT Lbs,
4/20/25 7:45:54 PM,880,FPS,43.7,FT Lbs,
4/20/25 7:46:02 PM,881,FPS,43.8,FT Lbs,

==================================

FX Atomic 15.9 gr PW=7 974 FPS avg.

Shot count: 5
Low: 968
Hi: 982
Avg: 974
STD Dev: 5
Spread: 14

4/20/25 7:46:27 PM,982,FPS,34.3,FT Lbs,
4/20/25 7:46:31 PM,968,FPS,33.3,FT Lbs,
4/20/25 7:46:36 PM,972,FPS,33.6,FT Lbs,
4/20/25 7:46:40 PM,975,FPS,33.8,FT Lbs,
4/20/25 7:46:44 PM,971,FPS,33.5,FT Lbs,


Not the greatest groups, but this was literally swapping back and forth between pellets and PW adjustment without additional shots to let anything settle in. I filled my magazine with 5 of each pellet. The first 5 shots were the JSB, the last 5 were the FX Atomics. There is some obvious POI shift between the two pellets, but with enough practice to know where that is, I can either adjust my scope or hold off for it.

View attachment 556863

Thank you for the input!
I've also noticed my ghost likes 3-5 shots to settle back in after making changes.
Has anyone else noticed this?

 

[old goat]

I've also noticed my ghost .22 plus does this, i learned the hard way.
Thanks for this thread very helpful.

 

[Jay308]

.25 cal 23” HP (stock 1:17.7 poly)
Factory hammer spring
Reg at 140 bar(stock gauge)
PW 10
JSB 33.95 Mk2 @ 910 fps, 3 SD / 10 ES

Came from AoA with 165 bar, PW Max @ 950 fps w/ 33.95 Mk2

I used a magnifying glass to set the reg pressure lol

 

[Solo1]

I just got a 30 cal ghost and this is my 3rd. Tony at talon had it tuned for 50 jsb @920 150 bar pw max 94 fpe I needed it below 80 fpe with pellets so i turned the reg down to 120 bar and went with a red hammer spring cause it didn’t sound happy with the black on pw2 That gave me this on pw 16

This is just below 80 sighted in with 8 shot 1 ragged hole @40 from Styx and a 2” group of 8 @100 from styx. Fx 44.8 bc was .044. No that ive made my other adjustments ( grip, butt pad , took out cheek riser) im ready to go head to head with my 25 from the bench and see which is better. Have to try to find some aea 45 grainers too