From the article "The catch is, the cartridges have to be “standard steel.” Standard steel cartridges contain no shot larger than English 4 (our 5s), no pressures in excess of 10,733 psi, and no velocities higher than 1400 fps in a one-ounce load or about 1250 fps in a 1 1/8 ounce load. Anything heavier, faster, or loaded with larger shot than that is classified as “high performance” steel. High-performance steel is recommended only for guns designed or proofed for steel shot. In England, guns proofed for high-performance steel bear a fleur-de-lis proof mark. Over here, practically any gun made since the late 80s was made with steel shot in mind."
What steel shot loads are available over here that meet those specs?
The Brit shell manufacturers are working on steel shot and biodegradable wads. They have come up with some 2 3/4" loads, but I haven't heard of any 2 1/2" loads developed yet. At least the shell manufacturers are working on lighter steel loads.
Ken
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