Brocock Ghost

Ghost is more refined than a Prophet, and not just by a little bit.

Edit: noticed you said Prophet 2. No experience on the gen 2 Prophets so I should clarify that a Ghost is more refined than the original Prophet.
You are right, is more defined for sure. But not more accurate, and fore sure, less efficient. However, I really want to test the little Poltergeist.
 
The example I'm reviewing in the link I shared a few posts back seems to be able to keep 5 shot groups all touching at 30 yards. 10 shot groups at 50 or 55 yards are averaging around 0.7-0.8inches with a couple of the best 10 shot/50 yard groups being under 0.4inches.. That's with JSB 10.34gr pellets.
If it has the classic 1:17.7 LW Rifled chocked barrel, a good polish and some 13.43gr/16.20gr can help a lot at 40y+
 
Other than projectile weight, there are three ways to tune for velocity: regulator pressure, hammer spring tension (power wheel), and adjustment of the hammer stroke/travel.

That harmonics word gets tossed around quite a bit. but I'm not sure it's a word that belongs in a discussion of the Ghost. The Ghost's barrel is supported throughout the length of the backbone/chassis. For example, on the configuration that I have, only a few inches of the 17inch barrel extends past the solid aluminum frame of the gun. Within that frame, in three different locations, are orings, centering the barrel inside the billet alum chassis. And two of those orings are small cross-section, so there's not much viton between the barrel and the frame. Furthermore, the mounting screw (or rather BOLT) is relatively large, with small tolerances. In short, the barrel starts out as a solid steel barrel (not thin walled liner) and is further supported by a rigid backbone, for much of its length. Harmonics always makes me think resonance (which a less worry-inducing word for vibrate), and there's just not much opportunity for anything to resonate in the Ghost with all that support.
Every guns suffer harmonics. More or less. Of course, the Ghost has an interesting way to keep the barrel in place.
 
Been shooting the BRK Ghost .177 FAC Carbine with the 430 mm barrel and the 300 cc bottle for a couple of days now 👍🙂

Very nice little compact rifle for sure and still pretty accurate 🎯🙂

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One trick ponies? Meaning they just shoot pellets? You can simply then switch out the barrel to one for slugs… Non issue.
Not just talking about slugs. I simply mean a fussy barrel. One that only really likes one projectile at one speed.

Had a few 0.22 red wolf HP’s through my hands that will only really shoot 25gr redesigned to any sort of acceptable level. And then only at either medium or high power. One got a heliboard installed to no avail. No point to any of the other power levels and therefore no versatility.

That sort of issue is magnified by a ‘tuneable’ gun. My Delta Wolf issues were more complex but the barrel in mine was part of the issue.
On the other side of the coin I have had two Airwolf MVT’s (still have one) which are stupidly tuneable and will shoot just about anything well once the right velocities are found. The new RPB barrels in the 2 prophet 2's I've set up have been similarly brilliant. Say what you will about skinny FX liners, but it’s no secret they will all shoot many different projectiles very well.

All I am saying is I hope this gun falls in the latter rather than the former group. If not it’s a waste of potential.
 
Macros... I respect and appreciate the knowledge that you've shared in the past. I'm a bit confused about Red Wolf barrel statement, though. Can't recall a single 22 barrel that shot well with 25.4s that did not also shoot well with 13.4s, 15.89s, and 18.1s and some even liked various H&N pellets as well. I would not call that pellet picky. It's possible that yours was... I will concede.
Regardless, the DW, AW, and Ghost use the same barrels as the RW with the exception of the 22 slow twist. I've requested/hoped for one for the RW but nothing so far. The DW, AW, and Ghost barrels all interchange but the RW barrels have a different breech end profile.
Bob
 
Saw a video posted on YT by Airgun Magazine out of the UK wherein the presenter demonstrated how to link two full magazines together (a Daystate kind of thing) and load them in the breech. One is in battery while the second sticks out just a bit on the opposite side of the gun. When the first is depleted of pellets just pull back the side lever and slide the other (full) mag into battery. The video featured a .177 with 14 shots per mag. Slick way to provide an extended shot string.
 
Did a deep dive into the Ghost 22 hp today so we can ship rifles at a good state of tune. The findings are as follows. The lower the regulator pressure the less the power wheel has influence on speed. We found 150 bar gave 895 fps with 25 grain jsb with wheel at min set. 80 + shots from 250 bar. Wheel on max 980 fps. Did not do a shot count. The adjustments are quick easy and fun to play with. Endless amounts of possible tunes to get the same, more, or less power. We even had the gun running at 90 bar 900 fps 25 grain pellets but was wasting air.

Rob
 
Did a deep dive into the Ghost 22 hp today so we can ship rifles at a good state of tune. The findings are as follows. The lower the regulator pressure the less the power wheel has influence on speed. We found 150 bar gave 895 fps with 25 grain jsb with wheel at min set. 80 + shots from 250 bar. Wheel on max 980 fps. Did not do a shot count. The adjustments are quick easy and fun to play with. Endless amounts of possible tunes to get the same, more, or less power. We even had the gun running at 90 bar 900 fps 25 grain pellets but was wasting air.

Rob
The .177 Carbine behaves the same way (the lower the reg pressure the less influence the power wheel has). My assumption is that the regulator pressure becomes the power limiting factor as it comes down. But when the regulator pressure is high for the pellet weight, then the hammer strike (driven by hammer spring tension) becomes the power limiting factor. Yep, ENDLESS combinations to get the most out of the chosen projectile at the desired fps, all while either focusing on efficiency or power.

Ie, hitting the valve harder does not increase power (speed) as much when the regulator is set low, as it does when the reg is set on the high end of the range appropriate for that projectile weight.
 
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Well.....I can offer some thoughts there, as I was an early JSAR Raptor adopter and owned one for about 18 months.

The Raptor isn't that bad of a gun. Most that talked (or still do) crap about it never shot nor saw one. BUT, the Ghost is miles ahead of the Raptor, both in design and build quality (one example: HUMA vs Ninja?!?!), but ESPECIALLY in support. That was the Raptor's big downfall, poor support. The Ghost on the other hand, has the dealer network and got-your-back ness of one of the oldest, biggest and most well-respected airgun manufacturers.
What is wrong with ninja regs? Have 2 raptors have the adjustable ninja on one of them and it works fine
 
All,

I was able to shoot the Ghost this weekend indoors so I thought I'd provide the results, summarize my observations, and some additional context:
  • Reg setting: 140 bar, Powerwheel setting used almost exclusively: 4, Scope: Sightron SIII 10-50
  • The gun shot at very consistent speeds with a standard deviation between .9 and 3. 50-grain pellets shot 895-900 on PL4, 44-grain shot at 920-925
  • Overall the gun performed very well. I was limited to Power Level 4 for the most part. I tried all PLs but the gun lost power above PL4 and sounded like it was wasting air. I'm working with AOA on tuning the PL's and regulator to get the gun in harmony and use the power wheel with more range. More to come on this...
  • I used 44-grain and 50-grain JSBs and the gun liked the 50-grain pellets, especially over 50 yards.
  • I tried several moderators and it did not shoot very well with any of them. Just about all of the recorded shooting (pictures below) was without a moderator. I don't believe the gun was shot at EBR with one either and made it to the final round.​
  • My 50-yard card was shot with the 50-grain pellets and scored 238, 8x's indoors. There was some wind and the card would occasionally move side-to-side so I think it could do a little better. I scored the card with a .35 probe.​
  • Note Row 5, target 4 (50 yds), and Row 2, target 2 (100 yds) and 50-grain pellet. Considering 50-75-100 overall the 50-grain pellet grouped better.​
  • Next Steps: Tuning the gun with AOA assistance, testing a CARM single shot tray, more moderator testing, and lots of outdoor shooting in the wind...​
Regards,
Steve

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Ghost Indoors 2.jpg
 
Mine came with the regulator set at 160 with RDs shooting 985 FPS. They shot fine but faster than I needed. Backed it down to 130 and they are at around 935 FPS. SD is around 1-3 but I need to remeasure and not play around with the power wheel.

Today, my bottle was dropping pressure from shooting so I popped in some HN Baracuda Hunter Extremes just out of curiosity. Zero POI change!!! Shot it all the way down to ~70 bar. No idea about the FPS.

This rifle makes me want to sell my other ones.
 
Mine came with the regulator set at 160 with RDs shooting 985 FPS. They shot fine but faster than I needed. Backed it down to 130 and they are at around 935 FPS. SD is around 1-3 but I need to remeasure and not play around with the power wheel.

Today, my bottle was dropping pressure from shooting so I popped in some HN Baracuda Hunter Extremes just out of curiosity. Zero POI change!!! Shot it all the way down to ~70 bar. No idea about the FPS.

This rifle makes me want to sell my other ones.
Is your Ghost a .22?