Gas operated
Yes
If it has choke tubes, yes. If it is fixed choke, no. I called Browning about mine and that was the answer they gave me.
50-500 usd
This shotgun was manufactured from 1990-1993 in Belgium and assembled in Portgual, "g" stood for gas operated and there was another model called the a500r. The "r" meaning recoil operated. The receiver looked similar to the a-5 model, just not so square. These guns were replaced with the Browning Gold series.
Google a company called Polywad. I have bought shells from them and was satisfied with their product.
That shotgun was actually produced by Remington in the United States during World War II, when the FN plant in Belgium was occupied by the Nazis. Often called the 'American Browning.' Value ranges from $350-$500.
Newton's third law states that for any action there is an equal and opposite reaction. When you shoot a shotgun it pushes back on your shoulder, it's called a kick.
There is no such thing as a Browning semiautomatic M70 rifle. The Model 70 bolt-action rifle was produced by Winchester, while Browning produced a very different semiautomatic rifle called the BAR. Which is it?
Shotgun cartridges
Sig was making a model called the P220. In 1977, Browning contracted with Sig Sauer to produce the gun. It became known as the Browning Double Action or BDA. Browning produced these guns until 1980, when Sig decided to import them into the US on their own.
This is what is called an American Browning. These guns were produced by Remington in the US (New York) for Browning after Belgium was overun by the Germans in WWII. The guns were made using Remingtons model 11 equipment. A few modifications were made to incorporate more of the Browning features and were all stamped Browning Arms Co. St. Louis Mo. Your 16ga gun sn: A14309 was made and shipped to Browning in 1946.
Track cycling is done in a velodrome.