Just seen a 10 pound bag of steel shot for $25.00.. I have never loaded any steel... not sure how to figure pellet count and cost per shell.. If you were to load 1 ounce of 7 1/2 steel shot.. since the steel is lighter you would have more pellets..?? right.. per shell.. or do you use the regular 1 ounce wad and bushing and have a really light fast load?? also how does a steel shot trap load pattern? thanks!