Barra Cowboy Series 1866 BB and pellet rifle: Part Three

Barra Cowboy Series pellet and BB multi-pump pneumatic.

Part 1
Part 2

This report covers:

  • The test
  • RWS R10 Match Pistol
  • H&N Match Light
  • The trigger
  • Loading
  • Sights
  • JSB Exact RS
  • Air Arms Falcon
  • Crosman Premier 7.9-grain dome
  • Ten-shot group
  • Summary

Today we look at the accuracy potential of the Barra Cowboy Series 1866 BB and pellet rifle when shooting pellets. 

The test

I shot five shot groups with five different pellets. The distance was 10 meters and the rifle was rested on a sandbag for every shot. I decided to pump the rifle five times for each shot because when I looked at Part 2 that seemed to be the most efficient number. If there was one pellet that stood out, I would shoot a second target with ten shots.

RWS R10 Match Pistol

First to be tried were five RWS R10 Match Pistol pellets. They made a group at 10 meters that measures 0.56-inches between centers. It’s too far to the left, so after seeing it I adjusted the rear sight a little bit to the right.

Barra Cowboy R10 group
The Barra Cowboy 1866 put five RWS R10 pellets into a 0.56-inch group at 10 meters.

H&N Match Light

H&N Match Light wadcutters were next to be tried. The Barra put five of them into a 0.69-inch group at 10 meters. This group is also left of the aim point, though not as much as the R10 group.  After seeing it I adjusted the rear sight notch much farther to the right.

Barra Cowboy HN Match group
The Barra Cowboy put five pellets into a 0.69-inch group at 10 meters.

The trigger

The Barra Cowboy trigger is heavy but crisp. It breaks very cleanly every time. I did put the safety on once my mistake while pumping, because it’s easy to push that false hammer forward.

Stock Up on Shooting Gear


I tried to load the rifle by holding the muzzle down and the receiver tilted to the left, but my fingers are just too large to do it that way. So I used the tweezers once more. Even then loading wasn’t easy.


As noted, the rear sight is adjustable by loosening a Phillips screw and sliding the notch to either side as required. It also adjusts for elevation via a notched ramp. But the rifle was shooting a little high already and it was adjusted as low as it will go.

I will note that the rear sight screw was tight when I loosened it the first time, and I am glad I had the Vessel screwdrivers to do the job. There was no slippage and after the first loosening I can use any Phillips driver in the future.

Barra Cowboy rear sight
Loosen the rear sight notch and slide in the direction you want the group to go.

JSB Exact RS

The third pellet I tried was the JSB Exact RS dome. Five went into a 0.836-inch group at 10 meters. Note that this group is centered much better than the first two, so I did not adjust the sight any more.

Barra Cowboy JSB RS group
The Barra Cowboy put five JSB RS pellets into a 0.836-inch group at ten meters.

Air Arms Falcon

Next I shot the Air Arms Falcon dome. Five of them went into 0.812-inches at 10 meters. It looks larger than the RS group to me, but that’s just an illusion

Barra Cowboy Falcon group
Five Falcon pellets went into 0.812-inches at 10 meters.

Crosman Premier 7.9-grain dome

The last  different pellet I tried was the 7.9-grain Crosman Premier dome. They shot a little higher on the paper than the other pellets. Five of them went into 1.079-inches at 10 meters. It is the largest group of the test.

Barra CowboyPremier Light group                      
The Barra put five Crosman Premier Lights into a 1.079-inch group at 10 meters.

Ten-shot group

The difference in accuracy between the pellets was not overwhelming, but the RWS R 10 Match  Pistol pellet was a clear winner. So I shot a second group of 10 shots with it. At least the rifle is now sighted in.

Ten shots made a group measuring 0.917-inches between centers at 10 meters.

Barra Cowboy ten shot group
Ten RWS R 10 Match Pistol pellets made a 0.917-inch group at 10 meters.


What is my evaluation? Well, remember this is also a BB gun, so we still have that test coming.

I think the Barra Cowboy Series 1866 pellet rifle is a good value for the price. It’s reasonably accurate, the trigger is good and, as we learned in Part 2, it is quite easy to pump. The only downside I see is a difficulty loading pellets.

There is no way to mount a scope in this rifle but I don’t see that as a minus. Not every air rifle needs a scope and if you are okay with that, this could be one to consider.

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