If you are having issues with accuracy. Try the following:

• Make sure all your stock screws are snug. 
• Experiment with which hold give you the best accuracy, then be consistent with that hold. This means to experiment with how tight you hold your rifle as well as where you position your hand on the fore end of the stock.
• Experiment with your ammunition choices. You want ammunition that fits securely in your barrel without being too loose or too snug. 
• Medium weight pellets will often provide better accuracy than super light or heavy pellets. 
• If you suddenly experience a loss of accuracy, double check your stock screws. If you are using a scope, it is likely failing. Use only airgun rated scopes and understand that even these will sometimes fail after thousands of shots.

1. My magazine will not rotate on its own.

• This may be from the inner o-ring is broken and will need to be replaced. Please contact Barra Airguns customer service for further assistance if your item is under warranty.
• If your item is not under warranty, you may purchase a replacement magazine on our website.

2. My magazine says .22cal but the ammo just falls right through. Or vice versa.

• Manufacturer labeled magazine with incorrect covers. Needs replacement. If your item is under warranty, contact Barra Airguns customer service for further assistance.
• If your item is not under warranty, you may purchase a replacement magazine on our website.

Please watch the linked video to help diagnose your leak: https://www.youtube.com/watch?v=NP5kxiLdOcw

For further assistance, please contact Barra Airguns customer service.

The size of threads on the pressure gauge is M10-1 threads.

Since we cannot control the manufacturer specs on moderators for this rifle, we highly recommend using .30 cal moderator for your .177 or your .22 1100z rifle.

The muzzle thread on the end of the 1100z barrel is 1/2-20.

Leaving pressure in a PCP is a good idea if you can store it out of reach of unauthorized users. If you are storing for a very long time, leaving 1000 to 1500 psi keeps the internals clean without putting a lot of stress on the seals.

The diameter for the inner barrel is measured 13 mm (outside), 4.5 mm (inside), and UNF 1/2 20 threads.

The rifle is not choked.

Four turns from flush are default for the hammer spring, which is approximately half of the available travel.

Yes, slugs can be used in the 1100z. Best bet is to go on the lighter side of things if we are talking .22 caliber, we have found 22 grain and lower tends to work well, though you will probably have to experiment with diameters and tune.