Both Shinsung and Sam Yang make a 50 caliber air rifle. The largest caliber Weinrauch makes is a .25 caliber.
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There are several that hold that distinction. All of them fall into the PCP (PreCharge Pneumatic) Class of airguns. These are airguns and rifles that require a special air-compressor, pump or scuba tank to charge them to 3000 PSI. This is far beyond a normal air rifle's charge. The are capable of firing not only a .177, .20 or .22 Caliber pellet but can be made to fire 9MM, 45 Cal or 50 Cal pellet. Any of these will bring down a deer or large game. PCP air rifles are also Olympic class target rifles that are extremely accurate and cost upwards of $2.500. Names like Feinwerkbau, ShinSung, AirForce and other are makers of fine match PCP air rifles.
There are several manufactures of High Velocity pellet guns and rifles. Just to name a few: Air Force, ShinSung, Benjamin, Feinwerkbau, Daystate, Anschutz, Beeman, Alfa, Evanix, Crosman, Gamo/BSA, Hammerli, Sumatra, Air Armes and Falcon. All of these are PCP (PreCharged Pneumatic) air guns and rifles that require a special pump, Compressor or Scuba tank to charge them to 3,000 PSI. The Sam Yang model fires a 50 caliber pellet that will bring down a deer. PCP air guns /rifles are beyond the C02 and springer power plants that most air guns use. But these guns /rifles will cost you more than the normal air rifle. They come in .177, .20, .22, .25, 9mm, 45 .cal and 50caliber barrels. These are the Air rifles used by professionals and Olympic shooters in the Olympics.
There called C02 air rifles or PCP air rifles
Sheridan air rifles who is owned by Crosman Sheridans are 5mm air rifles
If you are looking for the high end of air Rifles then look into the PCP class of air rifles (PreCharged Pneumatic) these air rifles are used in the Olympic games and in serious hunting. PCP rifles are expensive but you get the very best in air rifles. They not only come in .177 caliber but also come in .20, .22, .25 9MM, 45 Cal and 50 caliber pellets. They require a special air pump, Or Hand pump or Scuba tank to charge them to 3000 PSI. This is far beyond the common air rifle. They will cost you allot, in the range of $300 to $3,000. Benjamen currently has a starter PCP rifle called the Discovery. If you are looking for raw power then the Shinsung Dragon slayer fires a 50 caliber slug that is capable of bringing down a deer or moose, it cost $550. If you want a top end Match rifle then the Feinwerkbau 700 Aluminum Blue will cost you $3.395. Benjamin currently has an excellent PCP rifle called the Marauder ($500) that comes in .177, .22 and .25 caliber. The choice is yours.
no those are airguns. .22 bullet rifles are used in the Olympics --------------------correct answer:----------------- .177 caliber air rifles are used in the Olympics. These are high quality match air rifles.
These excellent rifles are made in Turkey.
Air rifles can push a lead pellet at or close to the speed of sound. Yes they are lethal, and very accurate.
Diana makes Original Air RIFLES.
The C02 air rifle that has the longest firing range is the PCP (PerCharged Pneumatic) class of air rifles. These include rifles like the AirForce Condor, Benjamin Marauder and the Benjamin Discovery. But these are expensive air/C02 rifles. They DO NOT use the 12 gram powerletts but require an expensive support system. The next strongest class of air rifles are the Under lever, Break barrel or spring/Nitro air rifles. If you want to understand more about air gun systems then read the link below (It's part of my profile) read the section on "Air Gunning"