In terms of muzzle energy it is the 300 Pegasus created by A-Square co. with 5000 ft lbs of energy.
The next one inline in muzzle energy is the 30-378 Weatherby Magnum made by he Weatherby co. with 4500 ft lbs of energy at the muzzle.
Both are the same with muzzle velocity.
.950 J D Jones
Rifle or handgun?
Any caliber can do the job. Most states regulate what can be used.
Both Shinsung and Sam Yang make a 50 caliber air rifle. The largest caliber Weinrauch makes is a .25 caliber.
Good rifle, good caliber for most uses. Did you have a specific question?
It is most likely to be a .32 caliber rifle since it uses .32 caliber ammo
30/06
Some guns yes, but most guns would require gunsmithing to change caliber.
At present the Sam Yang 50 Caliber "Dragon Claw". However this year 2014, other companies are starting to make 50 caliber air rifles. These rifles are capable of taking down deer.
Depends on what type of gun you are talking about. A pistol it is either .357 magnum or 44/40 Winchester which uses a rifle caliber size round in a six shooter for interchangeable use. Rifles would be 50 cal. m107 but the most effective round is a 416. The most powerful pistols are the Desert Eagle .50 caliber and the .500 Smith&Wesson
There is no most powerful airsoft sniper rifle that you can just buy. But, Iv'e heard of guys tuning them over 800fps with custom parts. My most powerful is 600fps.
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