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Yes, a "20 gauge" is just another word for the .410 shotgun.
a 20 gauge is a type of many shotguns but it is smaller than a 12 gauge but bigger that a 410. a 20 gauge is a good shotgun for all ages.
The 12 gage has a bigger barrel then a youth 20 gage shotgun.
A semi-automatic shotgun made in 410, 28, 20 and 12 gauge.
A 12 gauge shotgun is determined by the fact that 12 solid balls of lead will fit into the bore of the gun and thus these 12 solid balls of lead will equal a pound. Likewise, it takes 20 solid balls of lead fitting into the barrel of a 20 gauge shotgun to equal a pound. 10 solid balls of lead that equal a pound fitting in the bore of a shotgun would make that a 10 gauge, like wise a 16 gauge and a 28 gauge. There have been 8 gauge guns but an exception to all this is the 410 which is not a gauge but a caliber. The caliber of a 410 shotgun is .410 or there a bouts. Some research on your part will help you understand more if your desire but you can see that smaller balls make gauges with larger numbers and therefore, a larger number gauge like 20 will shoot shells that are smaller in diameter than those shot in a 12 gauge.
This is a shotgun with an internal barrel diameter (called the "bore) of approximately .410" which shoots a shell which is about .410" in diameter. It is the only shotgun shell size that uses this convention. A 12 gauge shotgun, for example, does not have a bore of "12". A 20 gauge shotgun has a smaller bore than a 12 gauge and a 10 gauge has a bigger bore than a 12. Gauge size is based on the number of lead balls of the bore diameter which are required to make a pound (16 ounces). 10 balls, 12 balls, or 20 balls.
Think of a lead ball which is the diameter of the inside of the barrel of the shotgun. The gauge of the shotgun is the number of balls that size to make up one pound. 12 balls - 12 gauge 20 balls - 20 gauge 28 balls - 28 gauge Exception - .410 bore is the actual bore diameter
410 or 20 gauge, the make of the gun depends on what you like
A shotgun is really the only one to use so a shotgun 12 20 gauge maybe 410. if you hit it in the right spot
Size of bore, size of ammuntion
Winchester did not make a shotgun chambered in 25 gauge,as a matter of fact there has never been a 25 gauge shotgun made.Available chamberings were 12 gauge,16 gauge,20 gauge,28 gauge,and 410 gauge.
12 gauge shotgun This is only the model number . They also made a 410 gauge . This shotgun was also made in 20 ga for certain (I have one) and probably 16 ga.