Brocock Compatto .22 Review

"DrPutz"SMAUG, That string for the 177 works out to be 1.39, which is pretty good. I suspect that the Marksman3006's may not have the slingshot hammer. His efficiency is about a well tuned PCP without a hammer denounce device. It is still good, but could be much better. Are you considering a regulator?
Kind of. Maybe I'll shoot groups at 50 yards. If I can see the POI shift up and down as velocity changes, maybe I'll do it. Meanwhile, 40 shots is enough for hunting and will only require one refill for a field target match. It's only a 150cc air tube, so I hate to lose a bunch of that to a regulator.

I read somewhere that the .177 and .22 Compattos have the slingshot hammer. (suggesting that the .25 doesn't) Marksman3006: is yours a .25?
 
"scubajeeper"Reese, other than the play in the stock, how is the build quality? Good review by the way.
There is some side-side flex in the picatinny rail up front, underneath. A bipod acts as a big lever if attached there, so in order to eliminate the flex, the plastic would have to be VERY thick there, which would add some muzzle-heaviness and start to wreck the excellent balance of the gun. Make it thicker, and we might risk breaking it, instead of it flexing.

I think Brocock made the right call here. Fitting a laser or flashlight there would not be an issue. A small tabletop bipod is also not an issue. I consider this and the 'manometer in the end of the air tube' to be nitpicks. I guess it is fair to expect perfection though, for $1k.

Would it have been better not to mold that rail in at all, so no one could complain about it being flexy? I don't think so.
 
I was so intrigued by the Compatto that I picked up a used .22 version last week. The gentleman I purchased from, bought it in October 2016 from AOA and indicated it had the Slingshot Hammer. He had damaged the stock and had it cerakoted to repair it. I am impressed by the compact size of the rifle and the great balance. I was, however, a bit disappointed on the power and the flex in the stock. The front end does feel weak, I will have to try the piece of rubber to see if that helps (or build a walnut stock if I keep it for hunting).

For the power, I shot one string and then disassembled the rifle (20 shots at 26 fpe with a large drop off at the end - 0.66 efficiency). I was surprised to find that it did not have the Slingshot Hammer - just a regular old hammer with a very long, highly pre-loaded spring. I spent the weekend off and on experimenting with different spring setups and think that I am close to a better tune. I am getting 30 shots with CHP at about 23 to 24 FPE from a 210 bar fill. This is roughly the same efficiency as the original poster, but less FPE. I am hoping to up the FPE, if possible and keep 30 good shots. The gun is tons quieter now. I have yet to scope it and test in the back yard. You can tell if you have a Slingshot Hammer by removing the stock - there is a slot in the side to see the hammer. I may call AOA to see if I can get an upgrade on the hammer. Also, I pulled the barrel off and there was a sharp burr on the transfer port (3.95 mm BTW) - I polished the "chamber" and cleaned the barrel good. This burr may be the cause of other people's accuracy problems, as there was quite a bit of lead shavings buildup. We'll see how it shoots later this week.

Dan
 
Excellent work Dan!

Brocock's website and their documentation indicate the max fill for the US (FAC) version is 240 bar (3480 psi). The 200 bar listed by many sales websites is for the low power non-FAC model. Compatto[/QUOTE]http://brocock.co.uk/index.php/compatto/embed/

Start your fill near that and I would think the shot string would increase. Hopefully it will produce more of a curve before dropping.

I am curious what your date of manufacture is? Mine is Nov-2016 according to Brocock. I am now very curious if I have this Slingshot Hammer in mine.
 
Just for the sake of accuracy I can tell you the .25 Compatto I own has the slingshot hammer from the factory!

You know that info about 240 bar was not there on their site mid last year nor is it in my manual. Too bad the FAC version still has a gauge that only goes up to 250 bar.

Glad to find out about the higher fill pressure as I have been struggling with low power.

Thurmond
 
"T3PRanch"I have a Lane for my Compatto BUT I hesitate to install it since it is a one way install with no way back to original without buying a new air tube!

Thurmond
But even if it was easy to replace, isn't the Slingshot supposed to act like a reg? I know it's not the same, but still, what is the huge advantage? How much more efficient do you reckon it will be with the reg installed? Does the reg decrease the tube's volume? Just curious, trying to learn. 
 
I up my fill to 215 BAR, based on suggestions posted and checking the Brocock website, I did not want to go much higher, as the cylinder is marked at Working Pressure: 200 BAR, Maximum Pressure: 250 BAR. Anyway, that got me past the top of the curve enough to get 5 more good shots. I twiddled with the spring some more and really could not eek out any more energy with the CHPs - 23 FPE. So I ran through my other pellet options to see what their energy is - my best showing is JSB 18.1 at 27.6 FPE, then Barracuda's at 25.1 FPE, followed by everything else in the 23 to 24.5 FPE range. I was surprised at the JSB 18's - that is the energy I am looking for. Also surprising was the Barracuda's and that they had lower energy than the JSB 18's, I have usually found that upping the pellet weight ups the energy/efficiency. The overall efficiency was 0.99 with the variety of pellets - 34 shots from 215 Bar to 125 Bar. That beats my BSA Scorpion, plus it is several pounds lighter.

I scoped it up tonight (UTG 10x compact) and did some sight in with FTT's - they wondered quite a bit, but it is windy and rainy tonight. I will have to wait for some calmer weather to sort out the pellets. Hopefully the JSBs will shoot well. The Sniper Magnums had quite a but of variance and only 24.1 fpe, so I am not sure they will shoot well. I stole the scope from my Contour S6 and was surprised to see that both guns are roughly the same length, with the Contour having a long LDC. I have a Hawke 2-7x to go back on that gun.

In regards to the manufacture date, I am not sure - it was purchased in October 2016 by the original owner, but that could have even been used. I am surprised to hear that there are .25's with the slingshot hammer - I thought they were not going to do it.

In regards to the Lane regulator, I though that it is a no-drill installation. I emailed them and they said that the Pot seals against the valve and no drilling was required. I bought a Lane for my 1720T and it included a drill, but the drill was not needed. - so maybe check the instructions.

Daniel Putz
 
Has anybody removed the Huggett silencer? I was cleaning my gun and the Hugget came off, but it did by the main body unscrewing from the part that threads onto the barrel. I can't tell if mine is just tight, epoxied on or what. I didn't want to try and spin it off too hard. My HW110 is like this too but just took a bit of effort and the threaded part came off. It wasn't epoxied, just had a grab on the threads.
 
"wahoowad"Has anybody removed the Huggett silencer? I was cleaning my gun and the Hugget came off,
Mine was loose, from the adapter, up front not like yours. So I hand tightened it hard enough. Then needed to remove it & came off like yours. Matter of fact, had to use tools to separate them after that. So I used threadlock on the barrel end, and now I can remove Huggett at will. 
 
"wahoowad"So you removed the entire Huggett and was left with the threaded end of the barrel showing?
Yes. The end cap was in the box. I shot it a couple times to hear the difference. Then screwed it back on tight. I needed to take a measurement without it, so I tried unscrewing it, and the thread adaptor (male/male) came out attached to the Huggett. So I separated them & installed the thread to the shroud end with threadlock. 
 
"Birdo"
"intenseaty22"That was what I thought too, & was quite surprised to find it loose. That is a win in my book. As long as there is no POI change, I can take it off in the field - more compact to carry. Options are good.
So you bought one? My exhaustive research led me to Brocock Bantam, I'm pleased.

I did. To be frank, my research lead me to the Regal XL, still kinda torn because it seemed like the better quality rifle, even at the same price. BUT the Compatto has a Huggett vs a Reflex, it's synthetic stock and shape seems like a better fit for the field, and more importantly I do 95% of my shooting/pesting at home and wanted the flexibility of the power adjuster. I will post my thoughts on it a little later as I have not had time to test it enough yet. My local paintball shop said they would fill my SCBA only to say they would not when I showed up with it, so getting air is difficult for now. I just got a Hawke scope that I need to mount, hopefully this weekend I can get some good data. As for the Bantam, I didn't like the look of the bottle, no Huggett option, and more expensive.