No. but if it is over the legal power then you might nedd too get one. you should ask your local police if you are still unsure.
No you don't
Do you mean an air Rifle? NO, Not in the United States.
Dicks sells air guns and rifles differently in each state. As an example they will not sell any air guns / rifles or bow & arrows in California. In other states they may sell a full line of BB guns.
Yes, you do- air weapons in the UK require a firearms licence.
There called C02 air rifles or PCP air rifles
The power limit is set at 12 ft. lbs. For air rifles and 6 ft. lbs. For air pistols. But I suggest you read the attached link Below for a complete answer.
No. Just have to be old enough!
Sheridan air rifles who is owned by Crosman Sheridans are 5mm air rifles
The most common place is the web. Places like "Craigslist" or "Gunauction" sell used Air guns and rifles, or you can try local free newspaper in your area.
Gamo is a manufacturer and retailer of air rifles. They also make and sell a variety of air rifle ammunition and accessories, such as targets and magazines.
It all depends on the country and location where you live
In order to bring down big game you will need a high end air rifle. These rifles are in the PCP (PreCharged Pneumatic) class of air rifles. Most air rifles are made in the .177 caliber, too small for large game hunting. But PCP air rifles are made in all size caliber's. You will find them in .177, .20, .22, .25, 9mm, 357 cal, 45 Cal and 50 Caliber. The last 2 sizes are capable of bring down large game. These rifles can be expensive and require a special pump or Scuba tank to charge them to 2000 to 3000 PSI. You will get around 30 to 40 shots per charge. See the link below for various different model PCP air rifles.