No. Bad Idea! BB's a .177 in size not .22
Not necessarily, but similar. An air rifle can be a BB gun, or it can be a pellet gun. Pellet guns are rifled, have more power, greater accuracy. .
I assume you are asking about air guns, if so then it would be helpful if you stated the model. Most air guns can accept all weights of pellet grains as long as the pellet is the correct caliber. In other words you can not use a .22 pellet in a .177 caliber pellet gun but you can use different weight pellets as long as they are .177 for that gun.
No. a 177 is a 4.5mm pellet. A 5mm is a 20 cal pellet. A 5.5mm is a 22 cal pellet Don't try it in the wrong airgun.
The 22 is slightly larger than the .177 cal. The 177 Pellet is almost the same diameter as the .175 BB.
diameter
just the sheer size of the .22 caliber pellet will do more damage than a .177 pellet. Here are the sizes of pellets today that are on the market. .177, .20, .22, .25, 9mm, 45 cal and 50 cal. The last 3 are usually restricted to PCP air rifles. (Big Bore)
Oh, dude, it's like asking if pineapple belongs on pizza - it's all subjective! A .177 caliber pellet gun is great for accuracy and speed, while a .22 caliber has more stopping power. So, it just depends on what you're shooting at - cans or grizzly bears.
Lets get something straight. There are BB guns / Rifles and there are Pellet guns / Rifles and there are a few BB & pellet rifle combinations. Most BB guns are .177 Caliber, there are a very few that are .22 caliber. Pellet gun & Rifles come in .177, .20, .22, .25, 9 mm, 40 Caliber, and 50 Caliber. The last 3 calibers are usually high powered air rifles in the PCP class of rifles (PreCharged Pneumatic) they require a special pump or SCUBA tank to charge them. So Yes there are calibers much larger than .177
It all depends on the bore size, and if you really mean GUN as in "gun or rifle." The larges Pellet bore is 50 caliber and that would be a Air Venturi .50 Cal, 275 Grains, Solid Core, Soft Lead, Round Nose pellet. If it's just a pistol it would be a .22 caliber pellet and that would most likely be a Predator Big Boy Senior .22 cal, 28.5 Grains, Domed. Remember air gun/rifle pellets come in all sizes. .177, .20, .22, .25, .9mm, 357mm, .45cal and 50 Cal.
The 342 is part of the Benjamin 340 series rifles mfg 1969-1992. It came in 177 cal and 22 cal, it was made with a Walnut stock.
Lets start with. The model 342 was a .22 caliber pellet rifle not a .177 cal bb gun. If you want an estimate of value then you will have to give more information as to the condition of the rifle. with out more information it is not possible to answer you.