Check out Hard Air Magazine!

29 June, 2013

New, July 2013 Issue of Airgun Hobbyist Magazine Published.

The latest - July, August, September - issue of Airgun Hobbyist magazine has just been published. It's another interesting issue...

Among the articles, you will find:
- Reviews of the Umarex P.08, and RWS C225 pistols, the Hatsan AT-P2 pistol/carbine and the Benjamin Trail NP Break Barrel Pistol.
- Comparisons of the Airforce Condor and Talon PCP air rifles, also of the Benjamin NP rifle series.
- Reviews of the Walther LGV Competition Ultra and Webley Stingray air rifles.

There's much more besides. Happy Reading!

You can purchase a subscription to Airgun Hobbyist magazine from the Archer Airguns online store


26 June, 2013

QB79 Repeater Test Results in .177 Caliber

Here's the test target from our latest testing of a final specification preproduction QB79 Repeater in .177 caliber. It shows 5 groups of 10 shots each fired consecutively as one long string. (Click on the image to enlarge it for better viewing).

As you can see, muzzle velocity hovered around the 680fps mark for 50 shots at 64 degrees F. This equates to 700fps at 75 degrees F, which is the specifications we will be using for the Repeater in this caliber.

Previous test results with .22 caliber guns showed very consistent muzzle velocity and this is also shown here, with standard deviations for each 10-shot group being well controlled at:

This is as close to steady muzzle velocity as we are likely to see and it's one reason for the excellent accuracy displayed in all the bulls. Well, except for that one flyer on target 4 - I'm blaming the pellet, but of course it could always be the shooter's fault!

CNC manufacturing of QB78 Repeater parts is under way right now. Both complete guns and Upgrade Kits should be available in early July 2013. We'll be making announcements as soon as these exciting airguns become available!


23 June, 2013

New Seal Kits for Crosman 1377 and 2240 Airguns

New at Archer Airguns are two seal kits for Crosman air pistols.

The "2X" Seal Kit for Crosman 1377 and 1322 Air Pistols comprises TWO SETS of the seals most commonly required to reseal a Crosman 1377 or 1322-type air pistol. This kit includes includes original Crosman factory parts such as the pump cup/seal and breech seal, together with valve O rings and bolt probe O rings for both .177 and .22 caliber versions.

These are the seals most likely to be needed for a reseal of these pump air pistols and this kit provides you with two sets of the parts. A spare set is useful either for backup, "just in case", or maybe you have Crosman pump air pistols already in both calibers!

This seal kit fits many Crosman pump airguns, including the following models: 1377, 1322, 1377C American Classic, PC77 Pumpmaster Classic and Backpacker Bugout Kit.

Also new is the Archer Airguns "2X" Seal Kit for Crosman 1740 and 2240 Air Pistols. This kit also includes TWO SETS of the seals most commonly required to reseal the popular Crosman 1740 and 2240-type air pistols.

This kit also includes bolt probe O rings for both .177 and .22 caliber versions. It provides parts to reseal many Crosman CO2-powered air pistols, including the 1740, 2240, Outdoorsman Carbine, 2250, 2300S and 2300T.


13 June, 2013

QB78 Repeater and QB79 Repeater .22 Cal Muzzle Velocity Tests

One of our design aims in the QB78 Repeater and QB79 Repeater project has been to offer consistent muzzle velocity over multiple shots.

With any CO2 air rifle, consistent muzzle velocity is more important for shot-after-shot accuracy than achieving some higher maximum muzzle velocity that falls off rapidly when shooting, causing vertical stringing on the target. So, good shot-to-shot fps consistency will give good accuracy over a long string of shots. As the Repeater simply begs to be shot more and faster than the standard QB78 and QB79 single-shot versions, this is an important feature.

This test target shows how a QB79 Repeater performs in .22 caliber with a 50-shot, 5 magazine string fired at a 5 bull target (10 shots per bull). The shots were fired every 10 seconds, with a one minute break every 10 shots to re-load the magazine. (OK, it's actually a 49-shot string as I pulled the magazine too soon on the fourth bull, my fault!). The Chrony prints are attached near to the appropriate bull.

The chart below plots muzzle velocity against shots taken. As you can see, the muzzle velocity was practically rock steady over the 49 shots at around 560 fps at the 64 degree range temperature. That's 60fps faster than the stock, single shot QB79 at this temperature in .22 caliber and equates to 580 fps at 75 degrees and 600 fps at 85 degrees F ambient temperatures.

Of course, the big advantage of the QB79 Repeater for multi-shot shooting is it's large, 9-ounce CO2 capacity. The QB78 Repeater holds much less gas and so is inherently more influenced by firing many, rapid shots.

Yet the QB78 Repeater still turns in a very creditable multi-shot performance. A QB78 Repeater in .22 caliber was tested in exactly the same way - 10 shots strings fired every 10 seconds with a one minute break to reload the magazine. As you can see, the .22 cal QB78 Repeater gives 50 "good" shots before the muzzle velocity drops to unacceptable levels. Please note that this is the same performance as the stock gun that shoots 60fps slower and is only single shot!

A graph of the muzzle velocity for this test shows that the smaller gas capacity of the QB78 platform causes the muzzle velocity to drop with each shot. It also shows how the fps recovers during the 60 second breaks of magazine loading. And note that we have 49 good shots here in the 5 bulls. Only the 50th shot fell low as the muzzle velocity dropped 39fps after shot 49 with the CO2 nearly exhausted.

These tests were conducted in our indoor range at 64 degrees F. When shot at higher temperatures - as these guns normally will be - the warming effect of the ambient temperature will reduce the cooling effect of the CO2 being shot and the muzzle velocities will be correspondingly higher and more consistent. We also can expect the .177 cal models to show less cooling effect due to temperature as these use less gas per shot - tests to follow.

All this means that the QB78 Repeater in .22 caliber is very suitable for use as a multi-shot CO2 air rifle and that 50 good shots per fill of 2 x 12 gram Powerlets is achievable. It's a great upgrade for the many thousands of QB78-type air rifles that are currently in use and also very viable as a complete new airgun.

The QB79 really shines as a Repeater with it's far greater CO2 capacity - we're talking 400 good shots per fill - giving a consistent 580 fps at 75 degrees F in .22 caliber, that's 10.7 ft/lbs of muzzle energy. For many shooters, this is an ideal airgun for everyday fun shooting, plinking, target practice and hunting small critters.


05 June, 2013

Archer Airguns Repair Center Reseals CO2 and PCP Air Rifles

As a direct result of customer requests, Archer Airguns has opened an airgun repair center specializing in resealing CO2 and PCP air rifles.

In addition to resealing any QB78 or QB79-type air rifle, Archer Airguns can reseal the Tech Force TF78, TF79 and TF78T airguns that were sold over many years by Compasseco. Both QB and Tech Force models can also be up-graded if required with popular Archer Airguns performance upgrades such as the XP Tune Kit at the time of resealing. So, your much-loved but leaking old TF78 (for example) can be resealed and upgraded in one easy step to give it a new lease of life!

Archer Airguns is also an authorized Crosman Service Center specializing in repair services to Marauder, Discovery, and Challenger PCP air rifles.

Together with Doug and Mike - our repair specialists - I attended training at the Crosman factory in order to become authorized as a Crosman Service Center. Archer Airguns now holds large stocks of repair parts for Marauder, Discovery and Challenger air rifles in order to provide our reseal services.

Uniquely, Archer Airguns repair services can be ordered online without the need for tedious telephone calls and estimates. We offer transparent pricing and a guaranteed turnaround time for repairs.

The standard turnaround time is 15 working days (3 weeks), but if it’s vital you receive your airgun back as soon as possible, there’s also an Expedited Service option that provides a 10 working days (2 weeks) turnaround.

For full details, please check out the Airgun Repair Services section of our website.

The photo shows Stephen Archer checking Benjamin Marauder and Discovery airguns before shipment back to their owners after resealing.


About This Blog

This blog shares information, ideas and knowledge about air rifles. It compliments the information Stephen publishes on the Archer Airguns website, on YouTube and the Chinese Airgun Forum.

  © Blogger templates The Professional Template by 2008

Back to TOP