The Brocock Concept

Monday, July 12, 2010

The Brocock Concept has a whole lot going for it.

Not long ago, on the “Yellow” airgun forum, someone posted a question: “What was the PCP equivalent of the beloved Beeman R7?” The R7 is highly praised by many airgunners because it is relatively light, simple, accurate, and just plain fun.

I think I have found the answer, for me anyway: the Brocock Concept. We’ll get to the particulars in just a moment, but first some background.

Now, if you recall from previous blogs on Brocock, the company was nearly driven out of business by changes in British law. But the folks at Brocock didn’t quit, and they took what could have been a deathblow as an opportunity to get stronger and better. One of the truly smart things they did was to hire the designer from Falcon Pneumatics (now defunct), who promptly designed a new line of precharged pneumatic air rifles and pistols for Brocock. These airguns are all based on a common action and trigger, to which reservoirs, barrels, and so forth are added to produce the desired airgun.

The Brocock Concept is one of those airguns. I tested the .22 version with a walnut stock, and it’s a beauty. It stretches just a yard overall and weighs only 6 pounds without a scope. Starting at the rear of the Concept is a soft rubber butt pad that is adjustable vertically; just loosen a screw and slide it up or down.

The butt pad can be adjusted vertically.

Moving forward, the buttstock is fully ambidextrous, with a raised cheek piece on either side. The pistol grip is checkered with a slight palm swell on either side. At the top of the pistol grip is a depression for resting your thumb while shooting. Forward of the pistol grip is a black metal trigger guard, inside of which is a black metal trigger that can be adjusted for first stage travel and weight. The length of pull from trigger to butt pad is about 14.25 inches.

Just ahead of the trigger guard is a bolt that secures the action in the stock. The forestock is slender and tapered with checkering on either side. At the far end of the forestock is the air reservoir, which has a screw-off cap that protects a male Foster fitting for filling the air rifle. Above that is the barrel, which also has a screw-off fitting that can be removed for fitting a sound moderator where legal.

Just back of the muzzle is a barrel band that secures the barrel to the air reservoir. Moving all the way back along the barrel, you’ll find the receiver, which has dovetails for fitting a scope both fore and aft of the breech. On the right rear side of the receiver is a small lever, and at the very tail end of the receiver you’ll find a small contoured knob that serves as the end of the bolt.

A small lever at the rear of the receiver on the right side releases the bolt.

That’s it: the Concept is about a simple as a PCP rifle can be.

To ready the Concept for shooting, unscrew the end cap on the air reservoir, attach a SCUBA tank or high pressure pump, and charge it to 2900 psi. Depress the small lever on the right side of the receiver, and the bolt springs backward, opening the breech. At this point, you can load a pellet into the breech and push the knob at the end of the bolt to close the breech, but the rifle will not be cocked. (From a practical standpoint for hunters, this means that you can load the Concept without cocking it and walk around all day without worrying that an errant twig might discharge a shot. Then, when you’re ready to shoot, just press the breech lever, pull the bolt all the way back and close the breech, and you’re good to go.)

To cock the action for shooting, from the breech-open position, you have to grab the knob at the end of the bolt and pull it backwards until it clicks. Load a pellet, close the breech by pushing the bolt knob fully forward, and you are ready to launch a pellet. Note well: this rifle has no safety of any kind. When it is loaded, keep your finger out of the trigger guard until you are ready to shoot.

Now, take aim, ease the first stage out of the trigger (this takes only 7 ounces of pressure) and at 1 lb. 3.4 oz, the shot goes down range. The Concept launches JSB .22 Jumbo Express pellets at about 667 fps average, and will deliver about 40 shots per fill (see the chart below). Since this rifle has no gauge for letting you know how much pressure is left in the reservoir, I suggest counting out 40 pellets, putting them in a small container like a pill bottle, and when the container is empty, you know it is time to refill the reservoir.

Fooling around from a very casual rest in my yard, I found that, at 13 yards, I could put shot after shot through the same hole. Not just “sorta” the same hole, I mean the exact same hole. I would be astonished if this rifle can’t shoot dime sized groups at 35 yards and well under an inch groups at 50 yards.

In all, I found the Concept is light, simple, handy, and delightfully accurate. I think a  lot of airgunners will enjoy owning and shooting this air rifle.

Til next time, aim true and shoot straight.

– Jock Elliott


  1. hugh gunn says:

    The brocock system of tandem air cartridges is based on a weirauch .38 cal pistol converted to take the tac with a new cylinder and bull barrel to suit .177and .22 respectively.The long barrelled model 766 peacemaker in .177 was discontinued for it proved too powerful for the UK market.At the time of the D

  2. hugh gunn says:

    dunblane massacre here in central scotland the police went bonkers and started raiding the houses of airgun shooters. my revolver was seized and the reason given “the chief constable doesnt like them”Ihad one hundred and sevent six airguns at the time and decided to get them safe on farms and the like and I gave away many airrifles and pistols to safe hands selling a number also to victor morris of glasgow.Best guns I had were a milbro G76 “perfecta”,a bsf MOD.45 “BAVARIA” carbine and a diana mod.30 bolt action repeater aka the thousand dollar bb gun.I presently have a webley senior and a haenel mod 26 (see hiller’s book for this latter a hitler youth training pistol resemling in the trigger the luger pistol regards CCser x

  3. Burhan says:

    Where can I get a butt for my Diana 35 or RWS 35

    1. Jock Elliott says:


      Look on the internet for the Dianawerks forum. Try there.

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