The "A" Team Scope Knobs

Overview of Scope Knobs             The Scope Knob attaches to the scope in place of the existing elevation adjustment turret. The Scope Knob is large in diameter so you can shoot-in at all distances and mark the correct click position directly on the knob. Once setup you can instantly click to the correct yardage so that you now hold dead on (for all targets) at all distances. A must for serious Field Target Shooters! Silhouette Shooters will also benefit from the ease of use. If you are not using one, you will be beat by someone who is!! Instructions for proper setup of click settings are included.
Specify Scope. $45  Limited Availability, email Hans to inquire:

Bushnell

Burris

Tasco

Nightforce

BSA
4-12 x 40 6-24 x 44 8-40 Side Wheel    36 x 56 FT 10-50 Side Wheel
6-18 x 40 8-32 x 44    TS Series      8-40 x 56  
Simmons Leupold Storey Custom Bausch & Lomb  
  4-12 x 40 6.5-20 x 40 6-24 x 44    6-24 / 8-32 x 40  
  6-18 x 40 18-40 x 40 8-32 x 44   4200 Elite  
6.5-20 x 44 Side Wheel 36 x 44   3000 Elite  

 

"A" Team Easy Airgun Ballistics (ATEAB) Program
Click here for information on the ATEAB Program

 

The following data has been kept for reference.
The products below are no longer available.

The "A" Team Regulator Kit
Sorry, No Longer Available
Easy Drop-in Installation Kit Yields Consistency & More Usable Shots
Typical Career 707 results with The "A" Team Regulator


Figures below are from Career 707 owners that have The "A" Team Regulator installed. Listed are velocities, spreads and shot counts at a particular Power Wheel setting. Spreads shown are for the entire charge, not just 5 or 10 shots. REMEMBER THAT THE POWER WHEEL IS FULLY FUNCTIONAL WITH THE REGULATOR INSTALLED! The velocity can be adjusted to any setting (below maximum velocity) by adjusting the Power Wheel. Lowering the power setting will increase the total number of shots from a full charge. Many of the figures below are with The "A" Team Spring Kit also installed, which makes the gun much more pleasant to shoot!

(All shot with 3,000 psi fill pressure)

Gun Rifle Carbine Rifle Rifle Rifle Carbine Carbine Rifle Rifle Rifle Rifle Rifle
Caliber 0.177 0.177 0.2 0.2 0.2 0.22 0.22 0.22 0.22 0.22 0.22 0.25
Pellet 10.5 10.5 14.3 14.3 14.3 14.3 14.3 14.3 14.3 14.3 29.6 30.7
Avg fps 905 903 785 950 1,015 767 860 893 938 993 895 835
Ex Spread 22 fps 14 fps 21fps 17 fps 16 fps 13 fps 20 fps 22 fps 20 fps 7 fps 10 fps 16 fps
# of Shots 90 45 90 41 31 59 41 62 45 40 21 26
Ft Lbs. 19.1 19 19.5 28.6 32.7 18.7 23.5 25.3 27.9 31.3 52.7 47.5
Max fps 1,010 978 1,015 1,015 1,015 930 930 1,100 1,100 1,100 895 975

Regulator Kits for other guns made to order
No Longer Available


The "A" Team Spring Kit

Overview of Spring Kit:         The Spring Kit allows for easier cocking of the Career 707 cocking lever. The cocking effort can be reduced to as little as 1/3rd of the original cocking effort, depending on the spring that you pick from the Kit. The first stage trigger pull is reduced by replacement and lubrication of another spring included in the Kit and the trigger pull is safely reduced to well under one pound. Use of the Spring Kit is recommended for regulated guns. Use of Spring Kit may reduce top velocity of the gun, which usually has a surplus anyway. Kit includes 4 hammer springs, a trigger return spring, lubrication brush and full instructions for installation and proper lubrication of hammer spring and trigger mechanisms. Test procedure guidelines are also included on the instruction sheet. 
A must for serious Competitors. $20 No Longer Available


The "A" Team Speed Loader

Overview of Speed Loader:         The Speed Loader is used to reload the existing Career 707 magazine. With it, the magazine can be reloaded and replaced in your gun in 10 seconds! One Speed Loader holds 5 or 6 magazine's worth of pellets, depending on the caliber being used. Specify caliber. $35 No Longer Available

 


(Please distribute to fellow Shooters) 

(Revised 9/6/06)

The "A" Team's View on; Understanding the Career 707 and precharged Pneumatics. How they are affected by Reservoir Pressures, Pellets, Hammer Springs and Regulators. A primer on Harmonics and how to make it work for you, not against you. How this all effects Accuracy and Consistency. Spring Gunners will pickup many useful tips also. 

The Career 707, from the factory, is designed to be able to handle a reservoir pressure beyond 3,000 psi. At full charge the hammer and hammer spring must be able to open the valve by hitting the valve stem to discharge the air through the transfer port and into the barrel. The power wheel adjustment is an end-stop adjustment, which allows the valve stem to be exposed a certain amount. As you turn the power up on the power wheel, the valve stem is exposed further past the end-stop to allow the hammer to depress the valve stem deeper into the valve body. As you turn the power wheel down, the valve stem is exposed less and less, resulting in a reduced air discharge when the hammer strikes the valve stem and depresses it to the end-stop. As the reservoir pressure decreases, the hammer spring has more and more surplus strength. With the reservoir pressure down to 2,000 psi the valve stem only requires 2/3rds of the force needed to open the valve, compared to when the reservoir pressure is at 3,000 psi. The factory hammer spring is stronger than is needed at 3,000 psi, so the hammer spring can be reduced safely. In an unregulated gun the reservoir pressure controls the velocity of the pellet in conjunction with the power end-stop adjustment. As the pressure drops from shot-to-shot usage, the velocity slowly drops causing a large spread in velocity. Some of the spread can be made up by adjusting the power wheel at certain times, but a power wheel adjustment usually results in a 50 to 70 fps jump in velocity, depending on the pellet used and pressure in the reservoir.

By installing a regulator, the valve will always have the same pressure against it. Now when the hammer strikes the valve stem the same discharge of air will occur, resulting in constant velocities and identical "harmonics". Since the valve never has more pressure against it than the regulator is set for; the factory hammer spring is much stronger than is needed. By changing the hammer spring to a lighter spring (that only has the required strength needed to open the valve the necessary amount against the reduced valve pressure) the cocking effort is reduced considerably.

In a regulated gun the velocity of a particular pellet will peak at a specific power wheel setting based on the regulator setting and the pellet being used. Remember that the power wheel is still fully functional in a regulated gun! By turning the power wheel beyond that peak setting (and allowing the hammer to depress the valve stem further than necessary), more air is discharged out the barrel, reducing the total number of shots, but never increasing the velocity of the pellet. The hammer spring strength can be further reduced to prevent the hammer from fully depressing the valve stem to the end-stop beyond the peak power setting. This will further reduce the cocking effort and the effort needed to release the sear from the hammer when firing the gun.

The "A" Team Spring Kit & Regulator

By installing a lighter hammer spring, from The "A" Team Spring Kit, you can reduce the cocking effort and lower the triggers pull weight. If you have a modified gun, (with an adjustable trigger), the trigger pull weight can be reduced to well under one pound depending on which hammer spring you decide to use. The Spring Kit includes 4 hammer springs, 1 trigger return spring, lubrication brush and full detailed instructions on installation and proper lubrication of the trigger and hammer components. Installing the light trigger return spring will reduce the first stage trigger pull to about two ounces or less. The Spring Kit Instructions also include full test procedure guidelines. The price of the Spring Kit is $20 US.

The Regulator will give you a constant pressure against the valve so that your velocities will be constant throughout the charge, not just 5 or 10 shots that you get with an unregulated gun. Where you would get a reasonable spread from your gun from a 300 to 400 psi change in reservoir pressure, you can now get tight spreads throughout the entire usable charge. Changes in "harmonics", due to different pressures against the valve, can cause point-of-impact shifts. This occurs because the valve in a non-regulated gun will try to meter a larger volume of air, as the pressure in the reservoir drops, to maintain relatively the same velocity of the pellet. This causes a different dwell time of the pellet in the barrel. Since all barrels vibrate to one extent or another, the pellet leaves the barrel at a different point in the barrel's vibration wave. This change in "Harmonics" results in a point of impact shift, which causes you to search for your ever-changing ZERO. By installing a Regulator you can eliminate point-of-impact shifts due to differing pressures on the valve. A Regulator gives you constant pressures throughout the usable charge, and therefore identical dwell times and harmonics. The end of your usable charge is the pressure that your Regulator is set at. The "A" Team Drop-in Regulator Kit includes Reg Chamber, Insertion and Extraction coupler and complete instructions for an easy do-it-yourself installation. (As reviewed in the August, 1998 issue of The Airgun Letter.) The price of all The "A" Team Drop-in Regulator Kits is   Sorry, Temporarily Unavailable

Remember all Drop-in Regulator and Spring Kits are designed to be user installed, with no modifications required to your gun. The gun is NEVER out of your possession to install our products. The owner can remove all products, and the gun can be brought back to original factory specs. No shipping and waiting for an installation. All products are warranted for user installation, no gunsmiths' services are required. If a problem arises you have but to remove the regulator and send it to us for service. You always have your gun. No waiting while UPS damages or loses your pride and joy!

So, for example, you can get 90 shots within a 22fps spread (or less) out of your regulated gun from a full charge or, you can get 24 shots from your unregulated gun with a 35fps spread with the same pellet, at the same velocity. By also installing a Spring Kit you can get the trigger pull down to well under one pound. If your trigger is not adjustable, the trigger pull is reduced by about 50%. This also makes the action much smoother and easier to use while taking less of a toll on you as you cock the gun.

Our 3 personal Career II 707's, 2 Carbines and 1 Rifle, all in .177 caliber, (the Rifle, when in .20 caliber, peaked velocities at 1,010 fps with 14.3 gr Premiers) all have cocking efforts that are approximately l/3rd the factory cocking effort. All three will peak velocities from 975 to 1,015 fps with Crosman 10.5 Premiers. And all 3 have trigger pull weights that range from 7 to 9 ounces. All triggers are completely safe and reliable and we never get a miss-cock when shooting the guns in rapid fire. The guns are more consistent and shoot tighter groups throughout the entire charge, not just 10 shots. Many people are amazed at the transformation a Career goes through when an "A" Team Regulator and Spring Kit are installed.

Speaking of velocity spreads, let's look at what causes them. If the Regulator is giving a constant pressure to the valve, then what causes a velocity spread at all? In most cases, pellets are the answer. Pellets are not as consistent as we might think. Pellets vary in size from pellet to pellet, even in the same box or tin. Pellets also vary in weight. If you examine them closely, many times you will find damaged pellets in a new box or tin. A pellet that is lighter than the others will leave the barrel faster than the majority and a pellet that is heavier will exit slower. A pellet that fits tight in the bore will start its travel in the bore at a different time than a loose fitting pellet. All of these differences cause an altered pellet dwell time, which usually produces a harmonics change, and a flier is usually the result. To minimize velocity spreads here are a few things that can be done to tighten your groups.

1) Examine all pellets and remove any that have the slightest skirt damage or non-uniformity.

2) Weigh all pellets and use only those that are of uniform weight.

3) Size your pellets with the largest sizing die available for your caliber. I prefer a Beeman Pellet Sizer on a stand. Sizing with this sizer will help you separate the small pellets that fall through... and size all of the larger pellets to a uniform diameter. After sizing, test them in your gun for group size, you may have to go to a smaller size die to attain the tightest group.

4) Top competitors wash their pellets to remove any debris left on them and/or in the tin from manufacturing. I prefer to use a colander and Dawn dish soap. I wash them at least 3 times and rinse them 3 to 5 times before laying them out to dry on layers of paper towels. (Softer pellets won't allow this treatment. Use your own judgment.)

5) Lube your pellets (only for precharged pneumatics, not springers!). Shooters Choice FP-l0 seems to be the lube of choice. It is important that you use enough lube. Remember that the lube on the pellet you are about to fire is leaving a residue in the barrel for the next pellet. The lube on the pellet does nothing for the current pellet being fired.

Following even a few of the above guidelines will tighten your feet-per-second spreads and your printed groups.

Now try this with your precharged pneumatic. Charge your gun to the normal fill pressure. On most guns, especially Careers, this is 3000psi. Set the power wheel to your favorite setting. Using your traditional pellets, shoot every shot through a chronograph and record, (on paper), every shot taken along with the shot number. Keep firing and recording till you have fired your customary number of shots. Now look at your recordings. How is your spread? Is it below 25fps? How many shots did you get? How much pressure from the reservoir would you have used to get a tight spread? If you don't like the answer to even one of these questions it may be about time to give us a call.

Guns that can't be filled beyond a specific pressure, due to valve lock, can be fully charged when a regulator is installed. This allows the user to get the most possible shots from their gun.

We hope this information will give our fellow shooters a new understanding of Career 707s and precharged pneumatics in general.

Hoping all your pellets stay in the Kill Zone.

(Please distribute to fellow Shooters) 

(Revised 2/11/02)

Models, Models, Models! Free Modeling Portfolio! ModelCoast. Photographers! Free Photographic Portfolios. Imagegods. Visit The Best Free Image Hosting.