For a air soft BB gun it's okay not powerful. For a regular BB gun "NO" that is not powerful at all. A Daisy Red Ryder BB rifle will fire around 325 FPS most new pellet Air Rifles will fire at least 1,000 FPS. A really good Air soft rifle will get around 500 FPS.
No in fact .3 Joules = 181 FPS. In a BB gun that is about as slow as you can get. But in an Airsoft gun that is average.
500 fps
250 FPS
360 FPS
All BB guns are alot less in (Strong) than Pellet guns. BB guns are luckey if they can attain 600 FPS (feet Per Second) Pellet guns & rifles can attain 1450 FPS. The fastest and most powerful BB gun I know of is the IZH Baikal Drozd that fires at 541 FPS. The Evanix AR6 Pellet rifles fires at 1450 FPS.
750 fps./BB; 665 fps./pellet The name Power-line may be a little misleading. Modern Pellet rifles are capable of firing a pellet at 1000+ fps. But this is a combination BB and Pellet gun and as far as BB rifles goes 750 fps is a good speed for a BB. This is about as fast as they can possibly go. I own 2 of these and find them very entertaining to shoot for fun.
70 FPS is considered low for a bb gun, of course if you were shot with it it would still hurt.
In a BB gun (Not airsoft) this is considered very slow.
A BB gun would be more powerful
For an air/piston powered .177 BB gun - anything less than 200 feet per second (fps) For a CO2 powered BB gun - anything less than 300 fps. For an "AIR SOFT" gun - anything less than 150 fps.
It was rated at 350 FPS. The same as the Red Ryder BB Rifle
200 or so ------------------------------------------------- The slowest BB gun ( NOT Airsoft or Pellet gun) that I know of is the Marksman 1010, it is rated at 200 FPS. The fastest BB gun I could find is the Crosman 2100 that is rated at 755 FPS. This gives you an average of 477.5 FPS Pellet guns and rifles can attain much faster speeds.